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Sample search results for: a-type post-agb stars

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1 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR** **EDITORS**
 

Summary:  in the LMC: Dust-enshrouded AGB stars, post-AGB stars and PN P.R. Wood Research School of Astronomy... . Spectra have been taken for most of the post-AGB stars and a selection of the AGB stars and red... -enshrouded AGB stars and 25 appear to be ...

  

Source: Wood, Peter - Mt. Stromlo Observatory & Research School of Astronomy and Astrophysics, Australian National University

 

Collection: Physics

 
2 MSX SOURCES IN THE LMC: DUSTENSHROUDED AGB STARS AND POSTAGB STARS
 

Summary:  MSX SOURCES IN THE LMC: DUST­ENSHROUDED AGB STARS AND POST­AGB STARS P.R. Wood Research School... Laboratory, University of California, Berkeley mcohen@astro.berkeley.edu Keywords: stars: AGB and post­AGB... and 25 appear to be post­AGB stars ...

  

Source: Wood, Peter - Mt. Stromlo Observatory & Research School of Astronomy and Astrophysics, Australian National University

 

Collection: Physics

 
3 A&A 469, 799806 (2007) DOI: 10.1051/0004-6361:20067035
 

Summary:  our present knowledge of known post-AGB stars in the galaxy with a view to using it to search for new... . stars: AGB and post-AGB ­ stars evolution ­ catalogs 1. Introduction Once they have burnt up... .u-strasbg.fr (130.79.128.5) or via ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
4 MODELLING OF THE OBSERVED POSTAGB R. Tylenda, K. Jeske, R. Szczerba, N. Si odmiak
 

Summary:  the evolution of the central star and hydrodynamics of the dust­ gas nebula formed from the AGB and post­AGB... towards the region occupied by the planetary nebula nuclei. The evolution of a star in the post­AGB phase... STAR The evolution of a star in the ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
5 An Observational Study of Post-Asymptotic Giant Branch Stars
 

Summary:  . With initial masses 9M, post-AGB stars form an important group of evolved stars and provide a unique... opportunity to study stellar evolution almost on a human time-scale. Post-AGB stars have spectral types... . Furthermore, post-AGB stars may ...

  

Source: Armagh Observatory Meteorology Databank

 

Collection: Geosciences

 
6 AMBER+FINITO+UT Science Demonstration Proposal The mass-loss envelopes of dusty post-AGB stars
 

Summary:  AMBER+FINITO+UT Science Demonstration Proposal The mass-loss envelopes of dusty post-AGB stars... @astro.ugto.mx Abstract: We propose to study the mass-loss envelopes of one or more of the dusty post-AGB stars IRAS 19125... +0343, AR Pup and HM Aqr. Post-AGB stars are ...

  

Source: Liske, Jochen - European Southern Observatory

 

Collection: Physics

 
7 Spitzer/MIPS Infrared Imaging of the Extremely Extended Circumstellar Dust Shell of HD 161796
 

Summary:  of AGB and post-AGB stars contain the fossil record of their mass loss, and therefore have the potential... the very extended dust shells around four (post-)AGB stars. From this study we will be able to (a... to verify many aspects of stellar evolution. A schematic view of the post-AGB ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
8 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR** **EDITORS**
 

Summary:  identified as a possible post­AGB star on the basis of its position in the IRAS 2­colour diagram (van der... region to be made. Assuming an intrinsic luminosity of 5000 L fi , typical of post­AGB stars... conclusion is that this object is an extremely young and compact post­AGB ...

  

Source: Wood, Peter - Mt. Stromlo Observatory & Research School of Astronomy and Astrophysics, Australian National University

 

Collection: Physics

 
9 OBSERVATIONAL DATABASE AND STATISTICAL PROPERTIES
 

Summary:  depleted atmosphere is no longer possible and the star enters the post--AGB phase of evolution. During... optical depth decreases and post­AGB stars become optically visible it is difficult to distinguish them... CrB objects; stars -- 21 #22;m emitters; circles -- high galactic latitude ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
10 RevMexAA (Serie de Conferencias), 00, 1{2 (2000) PLANETARY NEBULAE WITH DOUBLE SHELLS AND HALOES
 

Summary:  ) evolution. Key Words: HYDRODYNAMICS | STARS: AGB AND POST-AGB | STARS: MASS LOSS | STARS: WINDS, OUTFLOWS... , as a 0.605 M#12; post-AGB star. The numbers indicate the evolutionary ages in 10 3 years, with age zero... of circumstellar matter develop with time during ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
11 THEEVOLUTIONOFAGB STARS TOWARDSPLANETARY Detlef Schnberner and Matthias Steffen
 

Summary:  over nuclear burning only during the very early post­AGB evolution (T eff Ÿ 10 000 K) Figure 4 Central­star... matter develop with time during the late AGB and the following post­AGB evolution. We show (i... ) that during the post­ AGB evolution ionization destroys the initial ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
12 OPTICAL SPECTROSCOPY OF PECULIAR SUPERGIANTS
 

Summary:  of the not so numerous population of massive stars evolving towards LBV or WR--stage. All post--AGB objects... with infrared sources. In the spectra of some post-- AGB objects we have revealed strong emission C2 Swan bands... to the chemical diversities. Among peculiar supergiants, the post-- Asymptotic ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
13 IR--COLORS FOR MODELS OF POST--AGB EVOLUTION R. SZCZERBA
 

Summary:  IR--COLORS FOR MODELS OF POST--AGB EVOLUTION R. SZCZERBA N. Copernicus Astronomical Center PL­87... of evolution. Mass loss rates during the AGB and post--AGB phases are not known from the first principles... to the beginning of the PNe phase depends critically on the post--AGB mass loss rate and on the assumed moment

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
14 4. Interaction with a aaCircumbinary Disk
 

Summary:  to confirm by observation, circumbinary disks are very common around post- AGB stars. Their origin... present a similar evolution than Ba stars and are then used as constraints: post-AGB , dwarf Ba , subgiant... with observations. · The eccentricity is pumped rapidly enough to explain ...

  

Source: Izzard, Rob - Argelander Institute for Astronomy, Universität Bonn

 

Collection: Physics

 
15 The Astrophysical Journal, 652:L000--L000, 2006 November 20 # 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  Society. All rights reserved. Printed in U.S.A. A POST­AGB STAR IN THE SMALL MAGELLANIC CLOUD OBSERVED... . Subject headings: circumstellar matter --- Magellanic Clouds --- stars: AGB and post­AGB 1. INTRODUCTION... ­band variability, implies that MSX SMC 029 cannot be an AGB star. ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University

 

Collection: Physics

 
16 The Astrophysical Journal, 652:L000L000, 2006 November 20 2006. The American Astronomical Society. All rights reserved. Printed in U.S.A.
 

Summary:  Society. All rights reserved. Printed in U.S.A. A POST-AGB STAR IN THE SMALL MAGELLANIC CLOUD OBSERVED... headings: circumstellar matter -- Magellanic Clouds -- stars: AGB and post-AGB 1. INTRODUCTION As a star... -band variability, implies that MSX SMC 029 cannot be an AGB ...

  

Source: Sloan, Gregory C. - Department of Astronomy, Cornell University

 

Collection: Physics

 
17 The University of Western Ontario DEPARTMENT OF PHYSICS AND ASTRONOMY
 

Summary:  of these molecular bands by analyses of entirely different objects such as star forming regions, binary post-AGB... Physics & Astronomy Department University of Western Ontario "Molecular gas and dust around evolved stars... in the universe are created. Indeed, at the end of their active life, stars lose ...

  

Source: Lennard, William N. - Department of Physics and Astronomy, University of Western Ontario

 

Collection: Materials Science ; Physics

 
18 Asymmetrical Planetary Nebulae II: From Origins to Microstructures ASP Conference Series, Vol. 199, 2000
 

Summary:  with a sample of central stars of `optically thick' PNe, from Blocker (1995). The post-AGB ages are counted... in a realistic manner, the hydrodynamics of post-AGB wind envelopes leads to density structures and velocity #12... 1. Evolutionary tracks of hydrogen-burning post-AGB mod- els with isochrones (in ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
19 A&A 431, 565574 (2005) DOI: 10.1051/0004-6361:20040401
 

Summary:  investigate the evolution of oxygen- and carbon-rich AGB stars, post-AGB objects, and planetary nebulae using... one where most OH/IR stars are found. We use a grid of models of post-AGB evolution, which... trajectory in the diagram of the stars that have just left the AGB. Key words. ...

  

Source: Maciel, Walter Junqueira - Department of Astronomy, Institute of Astronomy and Geophysics, Universidade de São Paulo

 

Collection: Physics

 
20 ASTRONOMICAL JOURNAL, 122 : 15381544, September
 

Summary:  , luminosity central star, consistent a post­AGB object that experienced thermal pulse and consequent third... nebulae : individual (K648) : abundances stars : AGB post­AGB 1. INTRODUCTION Only the known Galactic... a lifetime the of º4270 post­AGB evolutionary models Vassiliadis Wood ...

  

Source: Bianchi, Luciana - Center for Astrophysical Sciences, Johns Hopkins University

 

Collection: Physics


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21 **FULL TITLE** ASP Conference Series, Vol. **VOLUME**, **YEAR OF PUBLICATION**
 

Summary:  ­hydrodynamics simula­ tions how the spectral energy distribution (SED) of post­AGB objects depends on the mass... from AGB to post­AGB wind (Reimers 1975; Pauldrach et al. 1988) at a stellar radial pulsation period P... 0 = 50 days which also defines the zero point of the post­AGB evolution (see Ste#en et al. 1998

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
22 FROM RED GIANTS TO WHITE DWARFS { A RADIATION-HYDRODYNAMICS SIMULATION OF THE
 

Summary:  by their post-AGB age, and the e#11;ective temperature and luminosity of their central stars. The scale factors... inter- action in a realistic manner, the hydrodynamics of the post-AGB phase leads, if coupled... cooling path is reached where the evolution slows down. The post-AGB evolutionary time scale is ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
23 ASP Conference Series, Vol. **VOLUME***, **YEAR OF PUBLICATION** **NAMES OF EDITORS**
 

Summary:  ** From Stardust to Meteorites: the Synthesis of Inorganic and Organic Grains in AGB and Post-AGB Stars... . Infrared spectroscopic observations of the circumstellar en- velopes of AGB and post-AGB stars have... in the spectra of post-AGB stars suggests that organic ...

  

Source: preprints/reprints & other

 

Collection: Physics

 
24 A&A 450, 701714 (2006) DOI: 10.1051/0004-6361:20053553
 

Summary:  ) and chemical composition. We estimate the masses of the post-AGB stars by comparing their position in the (log... of post-AGB stars has been used in a systematic way for such a purpose and we argue that, in several... respects, post-AGB stars should be more powerful ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
25 Publications of the Astronomical Society of the Pacific, 118:183204, 2006 February 2006. The Astronomical Society of the Pacific. All rights reserved. Printed in U.S.A.
 

Summary:  phases, post-AGB stars are surrounded by a planetary nebula (PN), ionized material lost by the precursor... -deficient post-AGB stars (e.g., Heap 1975). Later, the Palomar-Green survey revealed a new spectral class of H... -deficient post-AGB stars, the PG1159 ...

  

Source: Herwig, Falk - Department of Physics and Astronomy, University of Victoria

 

Collection: Physics

 
26 D. Sch onberner & M. Steffen, AIP, Sternphysik, 2002 Sternphysik
 

Summary:  (Corradi): Location of the central stars in the H­R diagram with post­ AGB evolutionary tracks of Sch... luminosity drop during the advanced post­AGB evolution. These recombination haloes, which can be confused... ­brightness profile, selected at post­AGB age of 5303 yrs, from our ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
27 TOWARD UNDERSTANDING THE B[e] PHENOMENON. I. DEFINITION OF THE GALACTIC FS CMa STARS
 

Summary:  with intermediate-mass post-AGB stars (see x 4.1) and with sgB[e] due to uncertain luminosity. Note that the only... HAeBe are mostly A-type stars with ``flat'' IR excesses, typical of preYmain- sequence objects... members show weak [O iii] emissions (e.g., MWC 17). Moreover, most ...

  

Source: Miroshnichenko, Anatoly - Department of Physics and Astronomy, University of North Carolina at Greensboro

 

Collection: Physics

 
28 We investigate the nucleosynthesis in combustion events in stellar evolution. These are
 

Summary:  a nucleosynthesis simulation that reproduces the detailed observed elemental abundances of post-AGB He-shell flash... -solar abundance distribution observed in this shell- flash star (elements like RB, Sr and Y are overabundant... phases of stellar evolution, particularly in stars of very low metal content. #12;

  

Source: Herwig, Falk - Department of Physics and Astronomy, University of Victoria

 

Collection: Physics

 
29 Mon. Not. R. Astron. Soc. 000, 000{000 (2000) Printed 27 October 2000 (MN L A T E X style le v1.4) Bipolar out ows in OH/IR stars
 

Summary:  out ows during the early post-AGB evolution. A sample of ten OH/IR stars with irregular OH spectra... nebulae (e.g. OH231.8+4.2), bright post-AGB stars (HD 101584) and re ection nebulae (e.g. Roberts 22... : Masers { OH/IR stars { Post-AGB stars { ...

  

Source: Zijlstra, Albert - School of Physics and Astronomy, University of Manchester

 

Collection: Physics

 
30 Bipolar outflows in OH/IR stars Albert A. Zijlstra,1w
 

Summary:  angular resolution. The sample includes bipolar nebulae (e.g., OH231.814.2), bright post-AGB stars (HD... words: masers ± stars: AGB and post-AGB ± planetary nebulae: general ± infrared: stars. 1 IN T ROD UCTI... -loss, the star heats up rapidly and eventually ...

  

Source: Zijlstra, Albert - School of Physics and Astronomy, University of Manchester

 

Collection: Physics

 
31 Shaping bipolar Planetary Nebulae : How mass loss leads to waistline development.
 

Summary:  envelopes, whereas most post-AGB stars and Planetary Nebulae (PNe) show ax- isymmetric circumstellar... : stars: AGB and post-AGB -- stars: circumstellar matter -- stars -- evolution -- stars: late... and Marigo 2004). After the SW phase AGB ...

  

Source: Speck, Angela Karen - Department of Physics and Astronomy, University of Missouri-Columbia

 

Collection: Physics

 
32 Highly Energetic Physical Processes and Mechanisms for Emission from Astrophysical Plasmas
 

Summary:  range and depending on their photospheric composition and interstellar absorption, some post-AGB stars... evo- lution, and interstellar matter. 1. Introduction During their evolution the more massive post-AGB... Compact Stars Thomas Rauch, Jochen L. Deetjen, Stefan Dreizler, Klaus Werner Institut fur ...

  

Source: Deetjen, Jochen - Egon Zehnder International, Stuttgart

 

Collection: Physics

 
33 Abstract for the present project From the Infrared Space Observatory (ISO), we obtained spectra of O-rich AGB stars using
 

Summary:  obtained observations of post-AGB stars and planetary nebulae using the ISO Long Wavelength Spectrometer... of the species interested. As for the observed CO rotational transitions in post-AGB stars and PNe observed... heating source is due to the stellar chromospheres. ISO-LWS observations of ...

  

Source: Justtanont, Kay - Stockholm Observatory

 

Collection: Physics

 
34 arXiv:astro-ph/0308509v128Aug2003 The UV Upturn: From M32 to Distant Clusters
 

Summary:  (post-AGB) stars, and non-thermal activity (Greggio & Renzini, 1990). Arguments based upon the fuel... a contribution from either hotter EHB stars and/or a higher contribution from post-AGB stars. 3. UV Images of M32... explained entirely by relatively short-lived ...

  

Source: Buzzoni, Alberto - Osservatorio Astronomico di Bologna

 

Collection: Physics

 
35 Mon. Not. R. Astron. Soc. 000, 1{15 (0000) Printed 1 November 1999 (MN L A T E X style le v1.4) The evolution of a rapidly accreting helium white dwarf to
 

Summary:  they are the products of single-star or binary-star evolution. Extreme helium stars (EHes) are rare B- and A-type giant... (Jef- fery 1988). Detailed models of thermally-pulsing post-AGB stars (Blocker & Schonberner 1997... older model for a 0:553 M#12; ...

  

Source: Armagh Observatory

 

Collection: Physics

 
36 Through the upper AGB towards a planetary: A hydrodynamical simulation y
 

Summary:  : Kinematical structures of the initial model (t = 0) for the post­AGB evolution, with central star paramenters... 100 000 years of the AGB evolution and the following 5 000 years of post­AGB evolution, based... sequence after Bl¨ocker (1995). Time zero marks the beginning of the model's post­AGB ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
37 arXiv:astro-ph/0412183v37Jul2005 Astronomy & Astrophysics manuscript no. paper November 10, 2006 (DOI: will be inserted by hand later)
 

Summary:  towards the red giant branch (RGB), the AGB, or a post-AGB star, can be ruled out. In this case it would... was not an evolved star, e.g. RGB, AGB, post-AGB. It is either slightly more massive than its B-type compan- ion, i... one may consider that V838 Mon was an A-type main sequence ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
38 Falk Herwig 19 Sept 2007 Progenitor AGB evolution
 

Summary:  stars and of a lot of post- AGB stars (e.g. L), as well as all properties that enter, e.g. galactic... chemical evolution models 3. How observations of H-deficient post-AGB stars can possibly help to figure... are observed at the surface of H-deficient ...

  

Source: Herwig, Falk - Department of Physics and Astronomy, University of Victoria

 

Collection: Physics

 
39 A&A manuscript no. (will be inserted by hand later)
 

Summary:  , M'endez, G'omez: Possible star formation in the halo of NGC 253 7 Post­AGB B2 O8 B1 B0 Fig. 4... the approximate locus expected for early­type Population I stars of different types and blue post­AGB stars... of NGC 253 being different from globular clusters. 3.3.2. ...

  

Source: Comerón, Fernando - European Southern Observatory, Garching

 

Collection: Physics

 
40 A&A 459, 885899 (2006) DOI: 10.1051/0004-6361:20047075
 

Summary:  post-AGB star to a very luminous cool supergiant. Theoretically, this evolution has been associated... in the hydrogen- deficient post-AGB stars, primarily because he considered con- vective overshoot. The two models... with the reignition of a helium-shell during the post-AGB stage. A ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics


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41 Abundance analyses of cool extreme helium stars Gajendra Pandey,1P
 

Summary:  in a single post-AGB star (FF scenario), or a merger of two white dwarfs (DD scenario). Although the FF... : AGB and post-AGB ­ stars: chemically peculiar ­ stars: evolution. P E-mail: pandey... . These lines are much stronger when compared with those observed in early ...

  

Source: Armagh Observatory; Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
42 Where is the Information Located in Stellar Spectra? Howard E. Bond
 

Summary:  of a gravity-sensitive filter, including Population II post-AGB stars and the extremely luminous yellow... stars in resolved populations. #12;­ 8 ­ Fig. 2.-- Wavelength dependence upon temperature changes in A-type... of 500 K, at constant gravity and metallicity in A-type dwarfs. At ...

  

Source: Bond, Howard E. - Space Telescope Science Institute

 

Collection: Physics

 
43 TOWARD UNDERSTANDING THE B[e] PHENOMENON. II. NEW GALACTIC FS CMa STARS1 A. S. Miroshnichenko
 

Summary:  that these criteria separate FS CMa stars almost uniquely. The only confusion may occur with intermediate-mass post-AGB... to separate post- AGB stars from B[e] stars (x 2); present our initial spectroscopic and photometric... UBVR data (see Table 4). It is ...

  

Source: Miroshnichenko, Anatoly - Department of Physics and Astronomy, University of North Carolina at Greensboro

 

Collection: Physics

 
44 arXiv:astroph/0010120 Convective proton and 3 He ingestion into helium burning
 

Summary:  on the description of mixing. 1. Introduction About 20 % of all post-AGB stars are hydrogen-de#12;cient. Among them... convective mixing. A group of stars which may be related to the hydrogen-de#12;cient post-AGB stars... : Nucleosynthesis during a post-AGB thermal ...

  

Source: Langer, Norbert - Sterrenkundig Instituut, Universiteit Utrecht

 

Collection: Physics

 
45 2001 by M. Steffen & D. Sch onberner (AIP) Poster presetnted at IAU Symposium 209 ``Planetary Nebulae: Their Evolution and Role in the Universe'', Canberra, Australia November 19 23 2001 AGB Mass Loss History &
 

Summary:  the advanced post­AGB evolution. These recombination halos, which can be confused with a real AGB halo... dwarf with M = 0:605 M#12; Indicated ages are in 1000 yrs, the post­AGB evolution begins at = 0 yrs... Fig. 2) is taken as the starting configuration for our post­ AGB simulation. Due to the strong ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
46 c D. Schonberner, R. Jacob, & M. Steffen, AIP, 2005 Stellar Physics
 

Summary:  surface brightness distributions and emission-line profiles, at post-AGB age t = 6004 yr. The central star... , from about 50 000 K to about 80 000 K. The post-AGB ages of the mod- els are 5 414, 5 788, & 6 445 yrs... and intermediate-mass stars is severely hampered by the fact that the distances to ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
47 c D. Schonberner, R. Jacob, & M. Steffen, AIP, 2004 On the Expansion Parallaxes of
 

Summary:  temperature of their central stars, from about 50 000 K to about 80 000 K. The post-AGB ages of the mod- els... (thin line) as well as synthetic surface brightness distributions and emission-line profiles, at post-AGB... of the final evolution of low and intermediate-mass stars is severely hampered by the ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
48 A&A manuscript no. (will be inserted by hand later)
 

Summary:  the brightest PNs. Key words: planetary nebulae: general, luminosity function -- stars: post­AGB -- galaxies... refer the reader for details. We generate a set of PNs with random post­AGB ages and central star masses... ­ tribution, on H­burning post­AGB evolutionary tracks, and on ...

  

Source: Méndez, Roberto H. - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
49 List of publications 1. Decin L., Hony S., de Koter A., Justtanont K., Tielens A.G.G.M., Waters
 

Summary:  ), 429 : High rotational CO lines in post-AGB stars and PNe 47. Justtanont K., Skinner C.J., Tielens A... Nebula, Dordretch:Kluwer, p. 321 : Mid-IR spectra of AGB and post-AGB stars 50. Fomalont E.B., Goss W... SP-247, p. 345 : CO emission from shock and PDR in C-rich PN and post-AGB ...

  

Source: Justtanont, Kay - Stockholm Observatory

 

Collection: Physics

 
50 THE EXTENDED ATMOSPHERE AND EVOLUTION OF THE RV TAURI STAR, R SCUTI I. Yamamura1
 

Summary:  : stars: AGB and post-AGB ­ stars: atmospheres ­ stars: circumstellar matter ­ infrared: stars ­ stars... suggested that these stars are in the post-AGB phase (Jura 1986). Abundance anomaly has been observed... about 2000 ...

  

Source: Yamamura, Issei - Department of Infrared Astrophysics, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

 

Collection: Physics

 
51 A&A manuscript no. (will be inserted by hand later)
 

Summary:  He­rich stars but atypical, e.g. post­AGB evolving star, the total sample consists of 6 standard... . References Hunger K., Groote D., 1993, in: Peculiar versus Normal Phe­ nomena in A­type and Related Stars... .01.3; 08.03.2) ASTRONOMY AND ASTROPHYSICS 14.1.1998 Research Note ...

  

Source: Armagh Observatory

 

Collection: Physics

 
52 Evolution of PAH Features from Proto-to Planetary Nebulae R. Szczerba
 

Summary:  of their carriers). Keywords: stars: evolution ­ stars: AGB and post-AGB ­ planetary nebulae: general PACS: 98.38.Ly... objects. However, their sample included only 7 post-AGB objects and 4 planetary nebulae (PNe) with [WR]2... we have determined parameters of UIR band profiles for the largest available ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics

 
53 Baltic Astronomy, vol. 14, XXX--XXX, 2005. NONLTE METAL ABUNDANCES IN V652HER AND HD 144941
 

Summary:  helium stars: a post­AGB star su#ering from a late thermal pulse, or the merger of two white dwarfs... by post­AGB evolution, linking R CrB stars to Wolf­Rayet type cen­ tral stars of planetary nebulae, see... , are unique among the class members because of ...

  

Source: Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
54 Baltic Astronomy, vol. 14, XXXXXX, 2005. NON-LTE METAL ABUNDANCES IN V652 HER AND HD 144941
 

Summary:  helium stars: a post-AGB star suffering from a late thermal pulse, or the merger of two white dwarfs... by post-AGB evolution, linking R Cr B stars to Wolf-Rayet type cen- tral stars of planetary nebulae, see... , are unique among the class members because of surface ...

  

Source: Armagh Observatory

 

Collection: Physics

 
55 +40 +30 +20 +10 0 -10 -20 -30 -40 Galactic longitude in degrees
 

Summary:  , explicitly excluding the regions occupied by the reddest OH/IR stars and post-AGB objects. In addition, we... al. (2001) SUMMARY: We have searched color-selected AGB stars from the ISOGAL and MSX mid-IR surveys... O masers instantaneously reveal the line-of-sight velocity of the stars, which in combination ...

  

Source: Sjouwerman, Loránt - National Radio Astronomy Observatory

 

Collection: Physics

 
56 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR** **EDITORS**
 

Summary:  of these conference proceedings. 2. Extreme Helium Stars Extreme helium stars (EHes) are rare B- and A-type giant... the star to expand to become a cool giant. Subsequent evolution would follow the canonical post-AGB... , subsequent evolution would resemble the canonical ...

  

Source: Armagh Observatory; Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
57 arXiv:astro-ph/0202167v17Feb2002 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR**
 

Summary:  -limited nucleosynthetic process as encountered, for instance, during the very late thermal pulse of post-AGB stars. We... YEAR** **EDITORS** Could SiC A+B grains have originated in a post-AGB thermal pulse? Falk Herwig... - tors such as the details of mixing during the post-AGB thermal pulse, the rates of ...

  

Source: Washington University in St. Louis, Department of Physics, Laboratory for Space Sciences

 

Collection: Physics

 
58 Mon. Not. R. Astron. Soc. 000, ??{?? (2002) Printed 2 May 2003 (MN L A T E X style le v2.2) Near-Infrared spectroscopy of (Proto)-Planetary Nebulae
 

Summary:  -rippled and corrected for telluric absorption e#11;ects using an F- or A-type sub-giant or dwarf standard star spectrum... to pho- toionise the ejected AGB envelope (massive post-AGB stars are thought to evolve from F0 to B1... ), particularly in the inner core regions and along the inner edges of the ...

  

Source: Armagh Observatory

 

Collection: Physics

 
59 Asymmetric Planetary Nebulae III ASP Conference Series, Vol. XXX, 2004
 

Summary:  normal AGB and post-AGB stars, and is of relevance to this conference. Light-echo imaging allows... of dust shells around AGB and post-AGB stars. We are still early in the development of the echoes. A rough... star V838 Monocero- tis is being accompanied by the most spectacular display ...

  

Source: Bond, Howard E. - Space Telescope Science Institute

 

Collection: Physics

 
60 LATE STAGES OF STELLAR EVOLUTION JORIS A. D. L. BLOMMAERT1,
 

Summary:  of the rotational line spectra of CH and CH+. Keywords: Infrared: stars, Stars: AGB and post-AGB, Stars: atmospheres... : Asymptotic Giant Branch (AGB) stars, post-AGB objects, planetary nebulae, novae, symbiotic stars and Wolf... more components ...

  

Source: Szczerba, Ryszard - Department of Astrophysics, Centrum Astronomiczne im. M. Kopernika

 

Collection: Physics


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61 Organic Matter in Space Proceedings IAU Symposium No. 251, 2008
 

Summary:  or post-AGB star embedded in a small dark cloud, even though we have no clear idea about why an AGB/post-AGB... of molecular radio lines, although SiO maser sources are usually identified as oxygen-rich evolved stars... -rich evolved star, but its evolutional status is still ...

  

Source: Nakashima, Jun-ichi - Department of Physics, Hong Kong University

 

Collection: Physics

 
62 ccsd-00003364,version2-28Nov2004 Astronomy & Astrophysics manuscript no. 1553.hyper3208 November 28, 2004 (DOI: will be inserted by hand later)
 

Summary:  of AGB and post-AGB carbon stars from mid-infrared observations E. Lagadec1, D. M´ekarnia1, J.A. de... -infrared images of a sample of AGB and post-AGB carbon stars (V Hya, IRC +10216, CIT 6 and Roberts 22) obtained... of Roberts 22 and IRC +10216. Key words. Stars: AGB and ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
63 ccsd00003364, Astronomy & Astrophysics manuscript no. 1553 November 28, 2004
 

Summary:  of AGB and post-AGB carbon stars from mid-infrared observations ? E. Lagadec 1 , D. M#19;ekarnia 1 , J... Abstract. First mid-infrared images of a sample of AGB and post-AGB carbon stars (VHya, IRC +10216, CIT 6... of Roberts 22 and IRC +10216. Key words. Stars: AGB and ...

  

Source: Ecole Polytechnique, Centre de mathématiques

 

Collection: Mathematics

 
64 A&A 377, 90103 (2001) DOI: 10.1051/0004-6361:20010858
 

Summary:  : interferometric ­ stars: mass loss ­ stars: AGB and post-AGB 1. Introduction The evolution of intermediate mass... planetary nebulae (PNe) is gradu- ally being understood. Post-AGB objects are surrounded by envelopes of gas... is an excellent candidate for study of stellar evolution during the early ...

  

Source: Monnier, John D. - Department of Astronomy, University of Michigan

 

Collection: Physics

 
65 A&A 387, 10221031 (2002) DOI: 10.1051/0004-6361:20020391
 

Summary:  from molecules. RV Tau stars are commonly considered as post-AGB stars. While a detached dust envelope... words. stars: AGB and post-AGB ­ stars: atmospheres ­ stars: circumstellar matter ­ infrared: stars... considered to ...

  

Source: Zijlstra, Albert - School of Physics and Astronomy, University of Manchester

 

Collection: Physics

 
66 Planetary Nebulae in our Galaxy and Beyond Proceedings IAU Symposium No. 234, 2006
 

Summary:  AGB and post­AGB stars using the ZEUS­3D code. However, radiation transfer is not included... . 3.2. The first 3000 years of post­AGB evolution After the star has evolved o# the AGB due... years of post­AGB evolution. Top left to bottom right: position of the central ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
67 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR** **EDITORS**
 

Summary:  luminosity suggests that it lies on a post-AGB evolution track. The cool star is a giant with a mass > 1M#12... thus consist of a hot post-AGB star and a more massive rapidly-rotating cool companion. Signi#12;cantly... outer envelope, the primary can no longer sustain shell hydrogen burning and so enters ...

  

Source: Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
68 Planetary Nebulae in our Galaxy and Beyond Proceedings IAU Symposium No. 234, 2006
 

Summary:  evolution of circumstellar gas envelopes around AGB and post-AGB stars using the ZEUS-3D code. However... Figure 1. Snapshot from a model sequence with a central star of 0.595 M , after 2600 years of post-AGB... . The essential physical ingredients for the modeling of planetary nebulae are (i) AGB and ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
69 arXiv:0806.2658v1[astro-ph]16Jun2008 To appear in the Astrophysical Journal
 

Summary:  to join the standard red-clump stars. Subject headings: stars: AGB and Post-AGB; stars: mass... stars, further complemented by a minority contribution from post-AGB PN nuclei. Still, facing... morphology Observations of local star samples show ...

  

Source: Buzzoni, Alberto - Osservatorio Astronomico di Bologna

 

Collection: Physics

 
70 Formation and Evolution of Planetary Nebulae D. Schonberner and M. Steffen
 

Summary:  1 5 10 Time [1000 yr] Post­AGB AGB 1 2 3 Oxygen Star: M =3.0, M f =0.605 (RGev605/ic24) 1 10 100 l... ) for the post­AGB evolution, with central star paramenters L = 6310 L fi , T eff = 6053 K, and R = 72:5 R fi... velocities from 5 to 25 km/s. During the post­AGB contraction, ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
71 PAHs and crystalline silicates in the bipolar post-AGB star IRAS 16279-4757 12
 

Summary:  PAHs and crystalline silicates in the bipolar post-AGB star IRAS 16279-4757 12 M. Matsuura1 , A... . Koike8 , L.P. Keller10 ABSTRACT IRAS 16279-4757 belongs to a group of post-AGB stars showing both PAH... 44179. Subject headings: stars: AGB and post-AGB, circumstellar ...

  

Source: Zijlstra, Albert - School of Physics and Astronomy, University of Manchester

 

Collection: Physics

 
72 Observations of the UVBright Star in 47 Tucanae with the Hopkins Ultraviolet Telescope
 

Summary:  = 3:07 \Sigma 0:20. These atmospheric parameters place the star on the Sch¨onberner post­AGB... evolved HB, post­HB, and post­AGB stars. Fewer than 50 globular­cluster UV­bright stars are known... , and of these only 13--16 are luminous enough to be post­AGB ...

  

Source: Henry, Richard C.- Department of Physics and Astronomy, Johns Hopkins University

 

Collection: Physics

 
73 Baltic Astronomy, vol. 14, XXX--XXX, 2005. IMPROVED HE LINE FORMATION FOR EHE STARS
 

Summary:  by post­AGB evolution, linking R CrB stars to Wolf­Rayet type central stars of planetary nebulae, see... gravities too large for post­AGB evolution and they show atypical surface abundances. #12; 2 Przybilla... Baltic Astronomy, vol. 14, XXX--XXX, 2005. IMPROVED HE LINE FORMATION FOR EHE ...

  

Source: Jeffery, Simon - Armagh Observatory

 

Collection: Physics

 
74 Baltic Astronomy, vol. 14, XXXXXX, 2005. IMPROVED HE LINE FORMATION FOR EHE STARS
 

Summary:  by post-AGB evolution, linking R Cr B stars to Wolf-Rayet type central stars of planetary nebulae, see... have gravities too large for post-AGB evolution and they show atypical surface abundances. #12... Baltic Astronomy, vol. 14, XXX­XXX, 2005. IMPROVED HE LINE FORMATION FOR EHE STARS ...

  

Source: Armagh Observatory

 

Collection: Physics

 
75 Planetary Nebulae in our Galaxy and Beyond Proceedings IAU Symposium No. 234, 2006
 

Summary:  : general -- stars: AGB and post­AGB 1. Introduction Despite its use for nearly 20 years, the physical basis... Figure 1. Predicted evolution of M(5007) vs. stellar e#ective temperature (left) and post­AGB age (right... the white­dwarf domain is reached, for various central­star models coupled to di#erent ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
76 Planetary Nebulae in our Galaxy and Beyond Proceedings IAU Symposium No. 234, 2006
 

Summary:  transfer ­ planetary nebulae: general ­ stars: AGB and post-AGB 1. Introduction Despite its use for nearly... No. 22 Figure 1. Predicted evolution of M(5007) vs. stellar effective temperature (left) and post-AGB... -Russell diagram until the white-dwarf domain is reached, for various central-star models ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
77 FROM THE TIP OF THE AGB TOWARDS A PLANETARY: A HYDRODYNAMICAL SIMULATION
 

Summary:  : Kinematic structures of the initial model (t = 0) for post--AGB evolution, with central star parameters L... of the observed post--AGB stars appears to be cooler than 5000 K, as is also predicted by Bl¨ocker's models. #12; ... and the following 5 000 years of post-- ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
78 A&A 414, 9931015 (2004) DOI: 10.1051/0004-6361:20031653
 

Summary:  nebulae: general ­ stars: AGB and post-AGB 1. Introduction The importance of a stellar wind to explain... AGB and post-AGB stars. Their approach is based on the evolutionary models of Vassiliadis & Wood (1993... envelope as the post-AGB star evolves. There are ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
79 THE SEQUENCE OF MASS-LOSING AGB STARS IN THE MAGELLANIC CLOUDS
 

Summary:  to post-AGB stars P.R. Wood Research School of Astronomy and Astrophysics, Australian National University... ;450-600 days until the AGB envelope is dissipated and the star becomes a post-AGB star (Wood and Cohen 2001... `ebre, C. Waelkens (ASP: San Francisco), p. 151 Wood P.R., Cohen M., ...

  

Source: Wood, Peter - Mt. Stromlo Observatory & Research School of Astronomy and Astrophysics, Australian National University

 

Collection: Physics

 
80 DISKLIKE STRUCTURE IN THE SEMIREGULAR PULSATING STAR X HERCULIS Jun-ichi Nakashima1
 

Summary:  -- stars: AGB and post-AGB -- stars: imaging -- stars: individual (X Herculis) -- stars: late-type -- stars... : mass loss 1. INTRODUCTION A nonnegligible number of asymptotic giant branch (AGB)/ post-AGB stars... that this ...

  

Source: Nakashima, Jun-ichi - Department of Physics, Hong Kong University

 

Collection: Physics


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81 THE PROMISE FOR AGB STARS: PHYSICS AND CHEMISTRY OF THE INNER CIRCUMSTELLAR ENVELOPE, AND THE MASS LOSS HISTORY
 

Summary:  seen towards early post-AGB objects, planetary nebulae, Herbig Ae/Be stars, and Herbig-Haro objects... -CSEs and their successors, the envelopes around young post-AGB objects and PNe. The chemistry in the inner CSE may be quite... - ture has been observed at 62 µm in evolved AGB and young post-AGB objects, ...

  

Source: Kerschbaum, Franz - Institut für Astronomie, Universität Wien

 

Collection: Physics

 
82 Astron. Astrophys. 348, 940944 (1999) ASTROPHYSICS
 

Summary:  and post-AGB ­ stars: white dwarfs ­ ul- traviolet: stars 1. Introduction The continuing spectroscopic... complete anal- ysis of all known H-deficient post-AGB stars, resulting in ac- curate determinations... stars in the log Teff ­ log g diagram compared with ...

  

Source: Deetjen, Jochen - Egon Zehnder International, Stuttgart

 

Collection: Physics

 
83 Astronomy & Astrophysics manuscript no. 7437 c ESO 2007 July 24, 2007
 

Summary:  : general ­ planetary nebulae: individual ­ stars: AGB and post- AGB 1. Introduction Since the pioneering... , and investigated the dependence on star formation rate, post-AGB transition time and initial-final mass relation... . The whole object consists of a rapidly evolving ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
84 A&A manuscript no. (will be inserted by hand later)
 

Summary:  : evolution -- stars: AGB and post--AGB -- white dwarfs -- Ultra­ violet: stars 1. Introduction The continuing... analysis of all known H­deficient post­AGB stars, re­ sulting in accurate determinations of the effective... . Location of the program stars in the log ...

  

Source: Deetjen, Jochen - Egon Zehnder International, Stuttgart

 

Collection: Physics

 
85 The Infrared Emission Features in the spectrum of WR 48a
 

Summary:  are represented by the post-AGB star HD 44179; C, C , C are represented by the post-AGB star IRAS 13416... .8 and > 8.62 µm (classes B, B , and B , respectively). Finally, two post AGB stars, that exhibit features... , some ...

  

Source: Groningen, Rijksuniversiteit - Centre for Ecological and Evolutionary Studies, Department of Marine Benthic Ecology and Evolution,

 

Collection: Biology and Medicine ; Environmental Sciences and Ecology

 
86 A&A 441, 573588 (2005) DOI: 10.1051/0004-6361:20053108
 

Summary:  : general ­ stars: AGB and post-AGB 1. Introduction Our understanding of the final evolution of low... the central star becomes hot enough to ionize and heat the AGB-wind matter after 2000 yr of post-AGB evolution... of the central stars in a log g - log Teff diagram of ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
87 Spectrophotometric Evolution The spectrophotometric evolution of a galaxy can be modeled given two kinds of information
 

Summary:  . SPECTROPHOTOMETRIC EVOLUTION 5. Asymptotic giant branch (AGB) -- H and He shell burning, along Hayashi line; 6. Post­AGB... given two kinds of information: (1) the galaxy's history of star formation, and (2) the photometric... properties of main­ sequence and post­main­sequence stars. For example, suppose that for each ...

  

Source: Barnes, Joshua Edward - Institute for Astronomy, University of Hawai'i at Manoa

 

Collection: Physics

 
88 Is the Extended Red Emission due to CO? Philip D. Bennett, Graham M. Harper, and Alexander Brown
 

Summary:  number of galactic sources, including reflection nebulae, post­AGB stars, planetary nebulae, high... with the peculiar post­AGB binary star HD 44179. We propose a novel mechanism to account for the ERE: the decay... emission features near 2100 š A. HD 44179 is a peculiar post­AGB ...

  

Source: Harper, Graham - Department of Astrophysics, Trinity College, Dublin

 

Collection: Physics

 
89 University, Theoretically,
 

Summary:  - ment of T eff , log g, L bol , abundances, wind velocity and mass loss rate for these post-AGB stars... , metallicity a#11;ects several aspects of the post-AGB evolution, including mass loss and the yield... . These parameters are needed to model the nebular dynamics and evolution, and constrain post-AGB ...

  

Source: Bianchi, Luciana - Center for Astrophysical Sciences, Johns Hopkins University

 

Collection: Physics

 
90 ASP Conference Series, Vol. **VOLUME**, **PUBLICATION YEAR** **EDITORS**
 

Summary:  by their post-AGB age, and the e#11;ective tem- perature and luminosity of their central stars. The scale factor... manner, the hydrodynamics of post-AGB wind envelopes leads to den- sity structures and velocity #12;elds... dwarf cooling path is reached where the evolution virtually stops. The post-AGB ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
91 Hydrogen-Deficient Stars ASP Conference Series, Vol. 391, c 2008
 

Summary:  are indicating that FG Sge is a post-AGB star of 0.6 M which #12;FG Sge, V605 Aql, Sakurai ­ Facts and Fictions... , and Sakurai's object set the benchmark for all theorists who want to model post-AGB evolution through late... of AGB and post-AGB evolution predicts, if mass loss is taken into account, that ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
92 A&A manuscript no. (will be inserted by hand later)
 

Summary:  of a fast radiation-driven wind ejected in the post-AGB phase by the stellar remnant with the slowly... ). The model is fol- lowed along the 0.605 M #12; post-AGB evolutionary track of Blocker (1995), assuming... to indicate the evolutionary speed, is shown in Fig. 4. It should be noted that this post-AGB model continues

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
93 arXiv:0807.2899v1[astro-ph]18Jul2008 Astronomy & Astrophysics manuscript no. ms c ESO 2008
 

Summary:  ABSTRACT Context. Water fountain stars are very young post-AGB stars with high velocity water maser jets... the very low 12 CO/13 CO line ratio. Key words. stars: AGB and post-AGB ­ (stars:) circumstellar matter... ) detected via their H2O masers. They could be ...

  

Source: Nakashima, Jun-ichi - Department of Physics, Hong Kong University

 

Collection: Physics

 
94 INTRODUCTORY REVIEW: PROTOPLANETARY NEBULAE
 

Summary:  . A more general term ``post­ AGB stars'' can be used to refer to these objects. 2. THE SEARCH FOR PROTO... in the post­AGB phase of evolution. High­latitude luminous stars: A number of high­latitude yellow super... infrared excesses and have been suggested to be ...

  

Source: preprints/reprints & other

 

Collection: Physics

 
95 28 OBSERVATIONAL TESTS Mass-Luminosity Relation
 

Summary:  ), there is good agreement. For post-AGB (only 1 star), there are too few stars to do a meaningful test. #12... calculations as correct. #12;3 Hertzsprung Gap According to the models, the higher-mass stars ought to evolve... so quickly from the MS to the RGB that few stars should be seen ...

  

Source: Sitko, Michael L. - Department of Physics, University of Cincinnati

 

Collection: Physics

 
96 PASJ: Publ. Astron. Soc. Japan 55, 229246, 2003 February 25 c 2003. Astronomical Society of Japan.
 

Summary:  -infrared images, a majority of the sample are AGB or post-AGB stars, although dense cores in the star... candidates for post-AGB stars: IRAS 18450-0148 (W 43A), and 19312+1950. We found that the intensity ratios... : kinematics and dynamics -- masers -- stars: AGB and ...

  

Source: Nakashima, Jun-ichi - Department of Physics, Hong Kong University

 

Collection: Physics

 
97 Millimeter Continuum Observations of Stars Roberto Pallavicini 1 and Stephen M. White 2
 

Summary:  late stages of evolution (AGB and post­AGB stars). These are objects in which a rich spectrum... a significant contribution to the radio emission (Miras, and AGB and post­AGB stars). All these are potentially... (at levels as high as ß 500 \Gamma 1500 mJy) is observed in AGB and ...

  

Source: Osservatorio Astronomico Di Palermo, Giuseppe S. Vaiana

 

Collection: Physics

 
98 Millimeter Continuum Observations of Stars Roberto Pallavicini 1 and Stephen M. White 2
 

Summary:  late stages of evolution (AGB and post­AGB stars). These are objects in which a rich spectrum... in which dust may make a significant contribution to the radio emission (Miras, and AGB and post­AGB stars... and post­AGB stars (including proto­planetary nebulae): ...

  

Source: White, Stephen - Department of Astronomy, University of Maryland at College Park

 

Collection: Physics

 
99 Probing the Massloss History at the Tip of the AGB by Planetary Nebulae DETLEF SCHNBERNER 1 , RALF JACOB 1 , GERALD HILDEBRANDT 1 ,
 

Summary:  to a few 10 3 years necessary to explain the cooler post­AGB stars with strong infrared dust emission... Astronomique, 11, rue de l'Université, 67000 Strasbourg, France The severe mass loss which stars of low... is the mass loss at the tip of the AGB during the star's transition from, say, 3000 K to about ...

  

Source: Astrophysikalisches Institut Potsdam, Stellar Physics Group

 

Collection: Physics

 
100 Nature 419 (2002), 904906 (issue 31 October) A stellar relic
 

Summary:  -asymptotic giant branch (post-AGB) stars10£ 11. However, extensive stud- ies have revealed that their observed... below so- lar ([Zn/H] 78¤ 2¦ 7). We also note that these post- AGB stars occupy a stellar physical... . Fur- thermore, typically many lines in the spectra of ...

  

Source: Korn, Andreas - Uppsala Astronomical Observatory

 

Collection: Physics


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