SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy
Abstract
In this paper, we report Fermi Large Area Telescope (LAT) observations of the radio-loud active galactic nucleus SBS 0846+513 (z = 0.5835), optically classified as a narrow-line Seyfert 1 galaxy, together with new and archival radio-to-X-ray data. The source was not active at γ-ray energies during the first two years of Fermi operation. A significant increase in activity was observed during 2010 October–2011 August. In particular, a strong γ-ray flare was observed in 2011 June reaching an isotropic γ-ray luminosity (0.1–300 GeV) of 1.0 × 1048 erg s-1, comparable to that of the brightest flat spectrum radio quasars, and showing spectral evolution in γ rays. An apparent superluminal velocity of (8.2 ± 1.5)c in the jet was inferred from 2011 to 2012 Very Long Baseline Array (VLBA) images, suggesting the presence of a highly relativistic jet. Finally, both the power released by this object during the flaring activity and the apparent superluminal velocity are strong indications of the presence of a relativistic jet as powerful as those of blazars. In addition, variability and spectral properties in radio and γ-ray bands indicate blazar-like behaviour, suggesting that, except for some distinct optical characteristics, SBS 0846+513 could be considered as a young blazarmore »
- Authors:
- Publication Date:
- Research Org.:
- NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
- Sponsoring Org.:
- USDOE; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF); National Inst. for Astrophysics (INAF) (Italy)
- Contributing Org.:
- Fermi LAT Collaboration
- OSTI Identifier:
- 1356667
- Grant/Contract Number:
- NNX08AW31G; NNX11A043G; AST-0808050; AST-1109911; ASI-INAF I/009/10/0
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Volume: 426; Journal Issue: 1; Journal ID: ISSN 0035-8711
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; active galaxies; galaxies; nuclei; Seyfert galaxies; gamma-rays
Citation Formats
D'Ammando, F., Orienti, M., Finke, J., Raiteri, C. M., Angelakis, E., Fuhrmann, L., Giroletti, M., Hovatta, T., Max-Moerbeck, W., Perkins, J. S., Readhead, A. C. S., Richards, J. L., Stawarz, Ł., and Donato, D. SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy. United States: N. p., 2012.
Web. doi:10.1111/j.1365-2966.2012.21707.x.
D'Ammando, F., Orienti, M., Finke, J., Raiteri, C. M., Angelakis, E., Fuhrmann, L., Giroletti, M., Hovatta, T., Max-Moerbeck, W., Perkins, J. S., Readhead, A. C. S., Richards, J. L., Stawarz, Ł., & Donato, D. SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy. United States. https://doi.org/10.1111/j.1365-2966.2012.21707.x
D'Ammando, F., Orienti, M., Finke, J., Raiteri, C. M., Angelakis, E., Fuhrmann, L., Giroletti, M., Hovatta, T., Max-Moerbeck, W., Perkins, J. S., Readhead, A. C. S., Richards, J. L., Stawarz, Ł., and Donato, D. Thu .
"SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy". United States. https://doi.org/10.1111/j.1365-2966.2012.21707.x. https://www.osti.gov/servlets/purl/1356667.
@article{osti_1356667,
title = {SBS 0846+513: a new γ-ray-emitting narrow-line Seyfert 1 galaxy},
author = {D'Ammando, F. and Orienti, M. and Finke, J. and Raiteri, C. M. and Angelakis, E. and Fuhrmann, L. and Giroletti, M. and Hovatta, T. and Max-Moerbeck, W. and Perkins, J. S. and Readhead, A. C. S. and Richards, J. L. and Stawarz, Ł. and Donato, D.},
abstractNote = {In this paper, we report Fermi Large Area Telescope (LAT) observations of the radio-loud active galactic nucleus SBS 0846+513 (z = 0.5835), optically classified as a narrow-line Seyfert 1 galaxy, together with new and archival radio-to-X-ray data. The source was not active at γ-ray energies during the first two years of Fermi operation. A significant increase in activity was observed during 2010 October–2011 August. In particular, a strong γ-ray flare was observed in 2011 June reaching an isotropic γ-ray luminosity (0.1–300 GeV) of 1.0 × 1048 erg s-1, comparable to that of the brightest flat spectrum radio quasars, and showing spectral evolution in γ rays. An apparent superluminal velocity of (8.2 ± 1.5)c in the jet was inferred from 2011 to 2012 Very Long Baseline Array (VLBA) images, suggesting the presence of a highly relativistic jet. Finally, both the power released by this object during the flaring activity and the apparent superluminal velocity are strong indications of the presence of a relativistic jet as powerful as those of blazars. In addition, variability and spectral properties in radio and γ-ray bands indicate blazar-like behaviour, suggesting that, except for some distinct optical characteristics, SBS 0846+513 could be considered as a young blazar at the low end of the blazar's black hole mass distribution.},
doi = {10.1111/j.1365-2966.2012.21707.x},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 426,
place = {United States},
year = {Thu Oct 11 00:00:00 EDT 2012},
month = {Thu Oct 11 00:00:00 EDT 2012}
}
Web of Science
Works referenced in this record:
FERMI /LARGE AREA TELESCOPE DISCOVERY OF GAMMA-RAY EMISSION FROM A RELATIVISTIC JET IN THE NARROW-LINE QUASAR PMN J0948+0022
journal, June 2009
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 699, Issue 2
Radio-Loud Narrow-Line Seyfert 1 as a new Class of Gamma-Ray Active Galactic Nuclei
journal, December 2009
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 707, Issue 2
Multiwavelength Monitoring of the Enigmatic Narrow-Line Seyfert 1 pmn J0948+0022 in 2009 March-July
journal, November 2009
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 707, Issue 1
FERMI LARGE AREA TELESCOPE FIRST SOURCE CATALOG
journal, May 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal Supplement Series, Vol. 188, Issue 2
SPECTRAL PROPERTIES OF BRIGHT FERMI -DETECTED BLAZARS IN THE GAMMA-RAY BAND
journal, January 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 710, Issue 2
THE FIRST CATALOG OF ACTIVE GALACTIC NUCLEI DETECTED BY THE FERMI LARGE AREA TELESCOPE
journal, April 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 715, Issue 1
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MISALIGNED ACTIVE GALACTIC NUCLEI
journal, August 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal, Vol. 720, Issue 1
Fermi Large Area Telescope observations of Local Group galaxies: detection of M 31 and search for M 33
journal, November 2010
- Abdo, A. A.; Ackermann, M.; Ajello, M.
- Astronomy & Astrophysics, Vol. 523
FERMI GAMMA-RAY SPACE TELESCOPE OBSERVATIONS OF GAMMA-RAY OUTBURSTS FROM 3C 454.3 IN 2009 DECEMBER AND 2010 APRIL
journal, September 2010
- Ackermann, M.; Ajello, M.; Baldini, L.
- The Astrophysical Journal, Vol. 721, Issue 2
SEARCH FOR GAMMA-RAY EMISSION FROM X-RAY-SELECTED SEYFERT GALAXIES WITH FERMI -LAT
journal, February 2012
- Ackermann, M.; Ajello, M.; Allafort, A.
- The Astrophysical Journal, Vol. 747, Issue 2
THE EVOLUTION OF SWIFT /BAT BLAZARS AND THE ORIGIN OF THE MeV BACKGROUND
journal, June 2009
- Ajello, M.; Costamante, L.; Sambruna, R. M.
- The Astrophysical Journal, Vol. 699, Issue 1
The colour of the narrow line Sy1-blazar 0324+3410
journal, August 2008
- Antón, S.; Browne, I. W. A.; Marchã, M. J.
- Astronomy & Astrophysics, Vol. 490, Issue 2
An eruptive BL Lacertae object with a high redshift, 0846 + 51 W1
journal, May 1979
- Arp, H.; Sargent, W. L. W.; Willis, A. G.
- The Astrophysical Journal, Vol. 230
THE LARGE AREA TELESCOPE ON THE FERMI GAMMA-RAY SPACE TELESCOPE MISSION
journal, May 2009
- Atwood, W. B.; Abdo, A. A.; Ackermann, M.
- The Astrophysical Journal, Vol. 697, Issue 2
The Burst Alert Telescope (BAT) on the SWIFT Midex Mission
journal, October 2005
- Barthelmy, Scott D.; Barbier, Louis M.; Cummings, Jay R.
- Space Science Reviews, Vol. 120, Issue 3-4
Quasar jets and their fields
journal, February 2000
- Blandford, Roger D.
- Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, Vol. 358, Issue 1767
The γ-ray brightest days of the blazar 3C 454.3: The γ-ray brightest of 3C 454.3
journal, September 2010
- Bonnoli, G.; Ghisellini, G.; Foschini, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 410, Issue 1
An Evolutionary Scenario for Blazar Unification
journal, January 2002
- Bottcher, M.; Dermer, C. D.
- The Astrophysical Journal, Vol. 564, Issue 1
The Swift X-Ray Telescope
journal, October 2005
- Burrows, David N.; Hill, J. E.; Nousek, J. A.
- Space Science Reviews, Vol. 120, Issue 3-4
The relationship between infrared, optical, and ultraviolet extinction
journal, October 1989
- Cardelli, Jason A.; Clayton, Geoffrey C.; Mathis, John S.
- The Astrophysical Journal, Vol. 345
Parameter estimation in astronomy through application of the likelihood ratio
journal, March 1979
- Cash, W.
- The Astrophysical Journal, Vol. 228
The Palermo Swift -BAT hard X-ray catalogue : III. Results after 54 months of sky survey⋆
journal, November 2010
- Cusumano, G.; La Parola, V.; Segreto, A.
- Astronomy & Astrophysics, Vol. 524
The Host Galaxies of Narrow-Line Seyfert 1 Galaxies: Nuclear Dust Morphology and Starburst Rings
journal, June 2006
- Deo, R. P.; Crenshaw, D. M.; Kraemer, S. B.
- The Astronomical Journal, Vol. 132, Issue 1
Gamma-Ray Studies of Blazars: Synchro-Compton Analysis of flat Spectrum Radio Quasars
journal, February 2009
- Dermer, Charles D.; Finke, Justin D.; Krug, Hannah
- The Astrophysical Journal, Vol. 692, Issue 1
Six years of BeppoSAX observations of blazars: A spectral catalog
journal, March 2005
- Donato, D.; Sambruna, R. M.; Gliozzi, M.
- Astronomy & Astrophysics, Vol. 433, Issue 3
Synchrotron Self‐Compton Analysis of TeV X‐Ray‐Selected BL Lacertae Objects
journal, October 2008
- Finke, Justin D.; Dermer, Charles D.; Böttcher, Markus
- The Astrophysical Journal, Vol. 686, Issue 1
Blazar nuclei in radio-loud narrow-line Seyfert 1?
journal, March 2009
- Foschini, L.; Maraschi, L.; Tavecchio, F.
- Advances in Space Research, Vol. 43, Issue 6
The first gamma-ray outburst of a narrow-line Seyfert 1 galaxy: the case of PMN J0948+0022 in 2010 July: First γ-ray outburst of a NLS1
journal, March 2011
- Foschini, L.; Ghisellini, G.; Kovalev, Y. Y.
- Monthly Notices of the Royal Astronomical Society, Vol. 413, Issue 3
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71: III. Rapid and correlated flux density variability from radio to sub-mm bands
journal, September 2008
- Fuhrmann, L.; Krichbaum, T. P.; Witzel, A.
- Astronomy & Astrophysics, Vol. 490, Issue 3
The Swift Gamma‐Ray Burst Mission
journal, August 2004
- Gehrels, N.; Chincarini, G.; Giommi, P.
- The Astrophysical Journal, Vol. 611, Issue 2
The blazar sequence: a new perspective
journal, July 2008
- Ghisellini, G.; Tavecchio, F.
- Monthly Notices of the Royal Astronomical Society, Vol. 387, Issue 4
The transition between BL Lac objects and flat spectrum radio quasars: FSRQs and BL Lacs
journal, May 2011
- Ghisellini, G.; Tavecchio, F.; Foschini, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 414, Issue 3
Simultaneous Planck , Swift , and Fermi observations of X-ray and γ -ray selected blazars
journal, May 2012
- Giommi, P.; Polenta, G.; Lähteenmäki, A.
- Astronomy & Astrophysics, Vol. 541
Spectropolarimetry of 'narrow-line' Seyfert 1 galaxies
journal, July 1989
- Goodrich, Robert W.
- The Astrophysical Journal, Vol. 342
THE SIMULTANEOUS OPTICAL-TO-X-RAY SPECTRAL ENERGY DISTRIBUTION OF SOFT X-RAY SELECTED ACTIVE GALACTIC NUCLEI OBSERVED BY SWIFT
journal, February 2010
- Grupe, Dirk; Komossa, Stefanie; Leighly, Karen M.
- The Astrophysical Journal Supplement Series, Vol. 187, Issue 1
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
journal, October 2005
- Jorstad, Svetlana G.; Marscher, Alan P.; Lister, Matthew L.
- The Astronomical Journal, Vol. 130, Issue 4
The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with
improved stray-radiation corrections
journal, September 2005
- Kalberla, P. M. W.; Burton, W. B.; Hartmann, Dap
- Astronomy & Astrophysics, Vol. 440, Issue 2
BROAD-LINE RADIO GALAXIES OBSERVED WITH FERMI -LAT: THE ORIGIN OF THE GeV γ-RAY EMISSION
journal, September 2011
- Kataoka, J.; Stawarz, Ł.; Takahashi, Y.
- The Astrophysical Journal, Vol. 740, Issue 1
Radio-loud Narrow-Line Type 1 Quasars
journal, June 2006
- Komossa, Stefanie; Voges, Wolfgang; Xu, Dawei
- The Astronomical Journal, Vol. 132, Issue 2
Relativistic jets as X-ray and gamma-ray sources
journal, February 1981
- Konigl, A.
- The Astrophysical Journal, Vol. 243
Active extragalactic sources - Nearly simultaneous observations from 20 centimeters to 1400 A
journal, September 1986
- Landau, Robert; Golisch, Bill; Jones, Terry J.
- The Astrophysical Journal, Vol. 308
Mojave: Monitoring of jets in Active Galactic Nuclei with vlba Experiments. v. Multi-Epoch vlba Images
journal, February 2009
- Lister, M. L.; Aller, H. D.; Aller, M. F.
- The Astronomical Journal, Vol. 137, Issue 3
The Jet Power, Radio Loudness, and Black Hole Mass in Radio‐loud Active Galactic Nuclei
journal, February 2006
- Liu, Yi; Jiang, Dong Rong; Gu, Min Feng
- The Astrophysical Journal, Vol. 637, Issue 2
The Hubble Space Telescope Snapshot Survey. III - Further observations in search of gravitationally lensed quasars
journal, January 1993
- Maoz, D.; Bahcall, J. N.; Doxsey, R.
- The Astrophysical Journal, Vol. 402
Probing the Inner jet of the Quasar pks 1510–089 with Multi-Waveband Monitoring During Strong Gamma-Ray Activity
journal, February 2010
- Marscher, Alan P.; Jorstad, Svetlana G.; Larionov, Valeri M.
- The Astrophysical Journal, Vol. 710, Issue 2
Log-parabolic spectra and particle acceleration in the BL Lac object Mkn 421: Spectral analysis of the complete BeppoSAX wide band X-ray data set
journal, December 2003
- Massaro, E.; Perri, M.; Giommi, P.
- Astronomy & Astrophysics, Vol. 413, Issue 2
The Likelihood Analysis of EGRET Data
journal, April 1996
- Mattox, J. R.; Bertsch, D. L.; Chiang, J.
- The Astrophysical Journal, Vol. 461
The relationship between radio luminosity and black hole mass in optically selected quasars
journal, October 2004
- McLure, Ross J.; Jarvis, Matt J.
- Monthly Notices of the Royal Astronomical Society, Vol. 353, Issue 4
The theory and simulation of relativistic jet formation: towards a unified model for micro- and macroquasars
journal, October 2003
- Meier, David L.
- New Astronomy Reviews, Vol. 47, Issue 6-7
The class of highly polarized quasars - Observations and description
journal, January 1981
- Moore, R. L.; Stockman, H. S.
- The Astrophysical Journal, Vol. 243
Hot graphite dust and the infrared spectral energy distribution of active galactic nuclei: AGN dusty structure
journal, December 2011
- Mor, Rivay; Netzer, Hagai
- Monthly Notices of the Royal Astronomical Society, Vol. 420, Issue 1
AGN Dusty Tori. II. Observational Implications of Clumpiness
journal, September 2008
- Nenkova, Maia; Sirocky, Matthew M.; Nikutta, Robert
- The Astrophysical Journal, Vol. 685, Issue 1
FERMI LARGE AREA TELESCOPE SECOND SOURCE CATALOG
journal, March 2012
- Nolan, P. L.; Abdo, A. A.; Ackermann, M.
- The Astrophysical Journal Supplement Series, Vol. 199, Issue 2
The spectra of narrow-line Seyfert 1 galaxies
journal, October 1985
- Osterbrock, D. E.; Pogge, R. W.
- The Astrophysical Journal, Vol. 297
Narrow-line Seyfert 1s: 15 years later
journal, September 2000
- Pogge, Richard W.
- New Astronomy Reviews, Vol. 44, Issue 7-9
Another look at the BL Lacertae flux and spectral variability: Observations by GASP-WEBT, XMM-
journal, November 2010
- Raiteri, C. M.; Villata, M.; Bruschini, L.
- Astronomy & Astrophysics, Vol. 524
The long-lasting activity of 3C 454.3: GASP-WEBT and satellite observations in 2008–2010 ⋆⋆⋆
journal, October 2011
- Raiteri, C. M.; Villata, M.; Aller, M. F.
- Astronomy & Astrophysics, Vol. 534
BLAZARS IN THE FERMI ERA: THE OVRO 40 m TELESCOPE MONITORING PROGRAM
journal, May 2011
- Richards, Joseph L.; Max-Moerbeck, Walter; Pavlidou, Vasiliki
- The Astrophysical Journal Supplement Series, Vol. 194, Issue 2
The Swift Ultra-Violet/Optical Telescope
journal, October 2005
- Roming, Peter W. A.; Kennedy, Thomas E.; Mason, Keith O.
- Space Science Reviews, Vol. 120, Issue 3-4
A Catalog of Quasar Properties from Sloan Digital sky Survey data Release 7
journal, June 2011
- Shen, Yue; Richards, Gordon T.; Strauss, Michael A.
- The Astrophysical Journal Supplement Series, Vol. 194, Issue 2
Radio bimodality: Spin, accretion mode, or both?
journal, February 2009
- Sikora, M.
- Astronomische Nachrichten, Vol. 330, Issue 2-3
Radio Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
journal, April 2007
- Sikora, Marek; Stawarz, Łukasz; Lasota, Jean‐Pierre
- The Astrophysical Journal, Vol. 658, Issue 2
Optical and radio polarimetry of the quasar 0846 + 513
journal, June 1984
- Sitko, M. L.; Rudnick, L.; Jones, T. W.
- Publications of the Astronomical Society of the Pacific, Vol. 96
VLBA Imaging Polarimetry of Active Galactic Nuclei: An Automated Approach
journal, July 2005
- Taylor, G. B.; Fassnacht, C. D.; Sjouwerman, L. O.
- The Astrophysical Journal Supplement Series, Vol. 159, Issue 1
On the Absorption of X‐Rays in the Interstellar Medium
journal, October 2000
- Wilms, J.; Allen, A.; McCray, R.
- The Astrophysical Journal, Vol. 542, Issue 2
A Population of Radio‐Loud Narrow‐Line Seyfert 1 Galaxies with Blazar‐Like Properties?
journal, October 2008
- Yuan, W.; Zhou, H. Y.; Komossa, S.
- The Astrophysical Journal, Vol. 685, Issue 2
The Hybrid Nature of 0846+51W1: a BL Lac Object with a Narrow Line Seyfert 1 Nucleus
journal, February 2005
- Zhou, Hong-Yan; Wang, Ting-Gui; Dong, Xiao-Bo
- Chinese Journal of Astronomy and Astrophysics, Vol. 5, Issue 1
A Comprehensive Study of 2000 Narrow Line Seyfert 1 Galaxies from the Sloan Digital Sky Survey. I. The Sample
journal, September 2006
- Zhou, Hongyan; Wang, Tinggui; Yuan, Weimin
- The Astrophysical Journal Supplement Series, Vol. 166, Issue 1
A Narrow-Line Seyfert 1-Blazar Composite Nucleus in 2MASX J0324+3410
journal, February 2007
- Zhou, Hongyan; Wang, Tinggui; Yuan, Weimin
- The Astrophysical Journal, Vol. 658, Issue 1
The burst Alert Telescope (BAT) on the Swift MIDEX mission
conference, February 2004
- Barthelmy, Scott D.
- Optical Science and Technology, SPIE's 48th Annual Meeting, SPIE Proceedings
Synchrotron Self-Compton Analysis of TeV X-ray Selected BL Lacertae Objects
text, January 2008
- Finke, Justin; Dermer, Charles; Boettcher, Markus
- arXiv
A Population of Radio-loud Narrow Line Seyfert 1 Galaxies with Blazar-like Properties?
text, January 2008
- Yuan, W.; Zhou, H. Y.; Komossa, S.
- arXiv
Gamma-Ray Studies of Blazars: Synchro-Compton Analysis of Flat Spectrum Radio Quasars
text, January 2008
- Dermer, Charles D.; Finke, Justin D.; Krug, Hannah
- arXiv
Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71, III. Rapid and correlated flux density variability from radio to sub-mm bands
text, January 2008
- Fuhrmann, L.; Krichbaum, T. P.; Witzel, A.
- arXiv
The Evolution of Swift/BAT blazars and the origin of the MeV background
text, January 2009
- Ajello, M.; Costamante, L.; Sambruna, R. M.
- arXiv
The colour of the narrow line Sy1-blazar 0324+3410
text, January 2009
- Anton, S.; Browne, I. W. A.; Marcha, M. J.
- arXiv
Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
text, January 2009
- Collaboration, Lat; Angelakis, E.; Bailyn, C.
- arXiv
Probing the Inner Jet of the Quasar PKS 1510-089 with Multi-waveband Monitoring during Strong Gamma-ray Activity
text, January 2010
- Marscher, Alan P.; Jorstad, Svetlana G.; Larionov, Valeri M.
- arXiv
The First Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope
text, January 2010
- Abdo, A. A.
- arXiv
Blazars in the Fermi Era: The OVRO 40-m Telescope Monitoring Program
text, January 2010
- Richards, Joseph L.; Max-Moerbeck, Walter; Pavlidou, Vasiliki
- arXiv
The long-lasting activity of 3C 454.3. GASP-WEBT and satellite observations in 2008-2010
text, January 2011
- Raiteri, C. M.; Villata, M.; Aller, M. F.
- arXiv
Broad Line Radio Galaxies Observed with Fermi-LAT: The Origin of the GeV Gamma-Ray Emission
text, January 2011
- Kataoka, J.; Stawarz, L.; Takahashi, Y.
- arXiv
Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars
text, January 2011
- Giommi, P.; Polenta, G.; Lahteenmaki, A.
- arXiv
On the Absorption of X-rays in the Interstellar Medium
text, January 2000
- Wilms, J.; Allen, A.; McCray, R.
- arXiv
An evolutionary scenario for blazar unification
text, January 2001
- Boettcher, M.; Dermer, C. D.
- arXiv
The relationship between radio luminosity and black-hole mass in optically-selected quasars
text, January 2004
- McLure, R. J.; Jarvis, M. J.
- arXiv
Polarimetric Observations of 15 Active Galactic Nuclei at High Frequencies: Jet Kinematics from Bimonthly Monitoring with the Very Long Baseline Array
text, January 2005
- Jorstad, Svetlana G.; Marscher, Alan P.; Lister, Matthew L.
- arXiv
VLBA Imaging Polarimetry of Active Galactic Nuclei - An Automated Approach
text, January 2005
- Taylor, G. B.; Fassnacht, C. D.; Sjouwerman, L. O.
- arXiv
The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections
text, January 2005
- Kalberla, P. M. W.; Burton, W. B.; Hartmann, Dap
- arXiv
The Burst Alert Telescope (BAT) on the Swift MIDEX Mission
text, January 2005
- Barthelmy, S. D.; Barbier, L. M.; Cummings, J. R.
- arXiv
The Swift Ultra-Violet/Optical Telescope
text, January 2005
- Roming, P. W. A.; Kennedy, T. E.; Mason, K. O.
- arXiv
A Comprehensive Study of 2 000 Narrow Line Seyfert 1 Galaxies from the Sloan Digital Sky Survey: I. The Sample
text, January 2006
- Zhou, Hongyan; Wang, Tinggui; Yuan, Weimin
- arXiv
The Host Galaxies of Narrow-Line Seyfert 1s: Nuclear Dust Morphology and Starburst Rings
text, January 2006
- Deo, R. P.; Crenshaw, D. M.; Kraemer, S. B.
- arXiv
Radio-Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
text, January 2006
- Sikora, M.; Stawarz, L.; Lasota, J. -P.
- arXiv
Works referencing / citing this record:
What powers the radio-loud narrow-line Seyfert 1 galaxy RX J2314.9+2243?: A view onto its central engine from radio to X-rays⋆
journal, February 2015
- Komossa, S.; Xu, Dawei; Fuhrmann, L.
- Astronomy & Astrophysics, Vol. 574
Properties of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies
journal, February 2015
- Foschini, L.; Berton, M.; Caccianiga, A.
- Astronomy & Astrophysics, Vol. 575
Radio jet emission from GeV-emitting narrow-line Seyfert 1 galaxies
journal, February 2015
- Angelakis, E.; Fuhrmann, L.; Marchili, N.
- Astronomy & Astrophysics, Vol. 575
The gamma-ray emitting radio-loud narrow-line Seyfert 1 galaxy PKS 2004−447: II. The radio view⋆
journal, April 2016
- Schulz, R.; Kreikenbohm, A.; Kadler, M.
- Astronomy & Astrophysics, Vol. 588
Compact steep-spectrum sources as the parent population of flat-spectrum radio-loud narrow-line Seyfert 1 galaxies
journal, June 2016
- Berton, M.; Caccianiga, A.; Foschini, L.
- Astronomy & Astrophysics, Vol. 591
Coexistence of a non-thermal jet and a complex ultra-fast X-ray outflow in a moderately luminous AGN
journal, April 2017
- Giroletti, M.; Panessa, F.; Longinotti, A. L.
- Astronomy & Astrophysics, Vol. 600
37 GHz observations of narrow-line Seyfert 1 galaxies
journal, July 2017
- Lähteenmäki, A.; Järvelä, E.; Hovatta, T.
- Astronomy & Astrophysics, Vol. 603
Fermi-LAT observation of nonblazar AGNs
journal, June 2018
- Sahakyan, N.; Baghmanyan, V.; Zargaryan, D.
- Astronomy & Astrophysics, Vol. 614
Study of the orientation of narrow-line Seyfert I
journal, August 2018
- Sbarrato, Tullia; Dotti, Massimo; Ghirlanda, Giancarlo
- Astronomy & Astrophysics, Vol. 616
Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective
journal, June 2018
- Berton, M.; Congiu, E.; Järvelä, E.
- Astronomy & Astrophysics, Vol. 614
Optical polarisation variability of radio-loud narrow-line Seyfert 1 galaxies: Search for long rotations of the polarisation plane
journal, October 2018
- Angelakis, E.; Kiehlmann, S.; Myserlis, I.
- Astronomy & Astrophysics, Vol. 618
Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies
journal, June 2018
- Lähteenmäki, A.; Järvelä, E.; Ramakrishnan, V.
- Astronomy & Astrophysics, Vol. 614
The Radio Properties of Radio-Loud Narrow-Line Seyfert 1 Galaxies on Parsec Scales
journal, October 2015
- Gu, Minfeng; Chen, Yongjun; Komossa, S.
- The Astrophysical Journal Supplement Series, Vol. 221, Issue 1
Multiwavelength behaviour of the blazar 3C 279: decade-long study from γ-ray to radio
journal, January 2020
- Larionov, V. M.; Jorstad, S. G.; Marscher, A. P.
- Monthly Notices of the Royal Astronomical Society, Vol. 492, Issue 3
Intranight optical variability of -ray-loud narrow-line Seyfert 1 galaxies
journal, November 2012
- Paliya, V. S.; Stalin, C. S.; Kumar, B.
- Monthly Notices of the Royal Astronomical Society, Vol. 428, Issue 3
The ordinary life of the γ-ray emitting narrow-line Seyfert 1 galaxy PKS 1502+036
journal, June 2013
- D'Ammando, F.; Orienti, M.; Doi, A.
- Monthly Notices of the Royal Astronomical Society, Vol. 433, Issue 2
The most powerful flaring activity from the NLSy1 PMN J0948+0022
journal, November 2014
- D'Ammando, F.; Orienti, M.; Finke, J.
- Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 3
Investigating kpc-scale radio emission properties of narrow-line Seyfert 1 galaxies
journal, July 2018
- Singh, Veeresh; Chand, Hum
- Monthly Notices of the Royal Astronomical Society, Vol. 480, Issue 2
FBQS J1644+2619: multiwavelength properties and its place in the class of γ-ray emitting Narrow Line Seyfert 1s
journal, January 2018
- Larsson, J.; D’Ammando, F.; Falocco, S.
- Monthly Notices of the Royal Astronomical Society, Vol. 476, Issue 1
Exploring the physics of the accretion and jet in nearby narrow-line Seyfert 1 galaxies
journal, March 2018
- Yao, Su; Qiao, Erlin; Wu, Xue-Bing
- Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 1
SDSS J211852.96−073227.5: a new γ-ray flaring narrow-line Seyfert 1 galaxy
journal, April 2018
- Yang, Hui; Yuan, Weimin; Yao, Su
- Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 4
The beamed jet and quasar core of the distant blazar 4C 71.07
journal, August 2019
- Raiteri, C. M.; Villata, M.; Carnerero, M. I.
- Monthly Notices of the Royal Astronomical Society, Vol. 489, Issue 2
SDSS J094635.06+101706.1: a redshift one, very radio-loud, γ-ray emitting narrow-line Seyfert 1 galaxy
journal, May 2019
- Yao, Su; Komossa, S.; Liu, Wen-Juan
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 487, Issue 1
Gamma-ray Emitting Narrow-Line Seyfert 1 Galaxies: Past, Present, and Future
text, January 2019
- Paliya, Vaidehi Sharan
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies
journal, November 2019
- D’Ammando, Filippo
- Galaxies, Vol. 7, Issue 4
MOJAVE. XIII. PARSEC-SCALE AGN JET KINEMATICS ANALYSIS BASED ON 19 YEARS OF VLBA OBSERVATIONS AT 15 GHz
journal, June 2016
- Lister, M. L.; Aller, M. F.; Aller, H. D.
- The Astronomical Journal, Vol. 152, Issue 1
Independent Estimation of Black Hole Mass for the γ -ray-detected Archetypal Narrow-line Seyfert 1 Galaxy 1H 0323+342 from X-Ray Variability
journal, October 2018
- Pan, Hai-Wu; Yuan, Weimin; Yao, Su
- The Astrophysical Journal, Vol. 866, Issue 1
Are Narrow-line Seyfert 1 Galaxies Powered by Low-mass Black Holes?
journal, August 2019
- Viswanath, Gayathri; Stalin, C. S.; Rakshit, Suvendu
- The Astrophysical Journal, Vol. 881, Issue 1
Gamma-ray emitting narrow-line Seyfert 1 galaxies: Past, present, and future
journal, October 2019
- Paliya, Vaidehi S.
- Journal of Astrophysics and Astronomy, Vol. 40, Issue 5
The most powerful flaring activity from the NLSy1 PMN J0948+0022
text, January 2015
- D'Ammando, F.; Orienti, M.; Finke, J.
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
The ordinary life of the gamma-ray emitting narrow-line Seyfert 1 galaxy PKS 1502+036
text, January 2013
- D'Ammando, F.; Orienti, M.; Doi, A.
- arXiv
The Radio Properties of Radio-Loud Narrow-Line Seyfert 1 Galaxies on Parsec Scales
text, January 2015
- Gu, Minfeng; Chen, Yongjun; Komossa, S.
- arXiv
The Gamma-Ray Emitting Radio-Loud Narrow-Line Seyfert 1 Galaxy PKS 2004-447 II. The Radio View
text, January 2015
- Schulz, R.; Kreikenbohm, A.; Kadler, M.
- arXiv
37 GHz observations of narrow-line Seyfert 1 galaxies
text, January 2017
- Lähteenmäki, A.; Järvelä, E.; Hovatta, T.
- arXiv
FBQS J1644+2619: multiwavelength properties and its place in the class of gamma-ray emitting Narrow Line Seyfert 1s
text, January 2018
- Larsson, J.; D'Ammando, F.; Falocco, S.
- arXiv
Fermi-LAT Observation of Non-Blazar AGNs
text, January 2018
- Sahakyan, N.; Baghmanyan, V.; Zargaryan, D.
- arXiv
Exploring the physics of the accretion and jet in nearby narrow-line Seyfert 1 galaxies
text, January 2018
- Yao, Su; Qiao, Erlin; Wu, Xue-Bing
- arXiv
Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies
text, January 2018
- Lähteenmäki, A.; Järvelä, E.; Ramakrishnan, V.
- arXiv
Investigating kpc-scale radio emission properties of narrow-line Seyfert 1 galaxies
text, January 2018
- Singh, Veeresh; Chand, Hum
- arXiv
The beamed jet and quasar core of the distant blazar 4C 71.07
text, January 2019
- Raiteri, C. M.; Villata, M.; Carnerero, M. I.
- arXiv