The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2
Abstract
In this paper, we report the discovery of a Milky Way satellite in the constellation of Antlia. The Antlia 2 dwarf galaxy is located behind the Galactic disc at a latitude of b ~ 11° and spans 1.26°, which corresponds to ~2.9 kpc at its distance of 130 kpc. While similar in spatial extent to the Large Magellanic Cloud, Antlia 2 is orders of magnitude fainter at MV = -9 mag, making it by far the lowest surface brightness system known (at ~31.9 mag arcsec-2), ~100 times more diffuse than the so-called ultra diffuse galaxies. The satellite was identified using a combination of astrometry, photometry, and variability data from Gaia Data Release 2, and its nature confirmed with deep archival DECam imaging, which revealed a conspicuous BHB signal. We have also obtained follow-up spectroscopy using AAOmega on the AAT, identifying 159 member stars, and we used them to measure the dwarf’s systemic velocity, 290.9 ± 0.5 km s-1, its velocity dispersion, 5.7 ± 1.1 km s-1, and mean metallicity, [Fe/H] = -1.4. From these properties we conclude that Antlia 2 inhabits one of the least dense dark matter (DM) haloes probed to date. Dynamical modelling and tidal-disruption simulations suggest that a combination of a cored DM profile and strong tidal stripping maymore »
- Authors:
-
[1];
[2];
[3];
[6];
[10]
- Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK, Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY 10010, USA
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK, McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
- Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510, USA, Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, USA
- McWilliams Center for Cosmology, Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA
- Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
- Department of Physics, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UK
- Department of Physics & Astronomy, Macquarie University, Sydney, NSW 2109, Australia, Macquarie University Research Centre for Astronomy, Astrophysics and Astrophotonics, Macquarie University, Sydney, NSW 2109, Australia
- Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia
- Department of Physics & Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK, Sternwarte der Ludwig-Maximilians-Universität, Scheinerstrasse 1, München D-81679, Germany
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1544920
- Alternate Identifier(s):
- OSTI ID: 1570216
- Report Number(s):
- arXiv:1811.04082; FERMILAB-PUB-19-517-AE
Journal ID: ISSN 0035-8711
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Monthly Notices of the Royal Astronomical Society
- Additional Journal Information:
- Journal Name: Monthly Notices of the Royal Astronomical Society Journal Volume: 488 Journal Issue: 2; Journal ID: ISSN 0035-8711
- Publisher:
- Royal Astronomical Society
- Country of Publication:
- United Kingdom
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; galaxy: halo; galaxies: dwarf; galaxies: individual: Antila 2 Dwarf
Citation Formats
Torrealba, G., Belokurov, V., Koposov, S. E., Li, T. S., Walker, M. G., Sanders, J. L., Geringer-Sameth, A., Zucker, D. B., Kuehn, K., Evans, N. W., and Dehnen, W. The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2. United Kingdom: N. p., 2019.
Web. doi:10.1093/mnras/stz1624.
Torrealba, G., Belokurov, V., Koposov, S. E., Li, T. S., Walker, M. G., Sanders, J. L., Geringer-Sameth, A., Zucker, D. B., Kuehn, K., Evans, N. W., & Dehnen, W. The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2. United Kingdom. https://doi.org/10.1093/mnras/stz1624
Torrealba, G., Belokurov, V., Koposov, S. E., Li, T. S., Walker, M. G., Sanders, J. L., Geringer-Sameth, A., Zucker, D. B., Kuehn, K., Evans, N. W., and Dehnen, W. Wed .
"The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2". United Kingdom. https://doi.org/10.1093/mnras/stz1624.
@article{osti_1544920,
title = {The hidden giant: discovery of an enormous Galactic dwarf satellite in Gaia DR2},
author = {Torrealba, G. and Belokurov, V. and Koposov, S. E. and Li, T. S. and Walker, M. G. and Sanders, J. L. and Geringer-Sameth, A. and Zucker, D. B. and Kuehn, K. and Evans, N. W. and Dehnen, W.},
abstractNote = {In this paper, we report the discovery of a Milky Way satellite in the constellation of Antlia. The Antlia 2 dwarf galaxy is located behind the Galactic disc at a latitude of b ~ 11° and spans 1.26°, which corresponds to ~2.9 kpc at its distance of 130 kpc. While similar in spatial extent to the Large Magellanic Cloud, Antlia 2 is orders of magnitude fainter at MV = -9 mag, making it by far the lowest surface brightness system known (at ~31.9 mag arcsec-2), ~100 times more diffuse than the so-called ultra diffuse galaxies. The satellite was identified using a combination of astrometry, photometry, and variability data from Gaia Data Release 2, and its nature confirmed with deep archival DECam imaging, which revealed a conspicuous BHB signal. We have also obtained follow-up spectroscopy using AAOmega on the AAT, identifying 159 member stars, and we used them to measure the dwarf’s systemic velocity, 290.9 ± 0.5 km s-1, its velocity dispersion, 5.7 ± 1.1 km s-1, and mean metallicity, [Fe/H] = -1.4. From these properties we conclude that Antlia 2 inhabits one of the least dense dark matter (DM) haloes probed to date. Dynamical modelling and tidal-disruption simulations suggest that a combination of a cored DM profile and strong tidal stripping may explain the observed properties of this satellite. The origin of this core may be consistent with aggressive feedback, or may even require alternatives to cold dark matter (such as ultra-light bosons).},
doi = {10.1093/mnras/stz1624},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 2,
volume = 488,
place = {United Kingdom},
year = {Wed Jun 12 00:00:00 EDT 2019},
month = {Wed Jun 12 00:00:00 EDT 2019}
}
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Works referenced in this record:
FERMI LARGE AREA TELESCOPE THIRD SOURCE CATALOG
journal, June 2015
- Acero, F.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal Supplement Series, Vol. 218, Issue 2
Gaia Data Release 2 : Specific characterisation and validation of all-sky Cepheids and RR Lyrae stars★
journal, January 2019
- Clementini, G.; Ripepi, V.; Molinaro, R.
- Astronomy & Astrophysics, Vol. 622
Baryons Matter: why Luminous Satellite Galaxies have Reduced Central Masses
journal, November 2012
- Zolotov, Adi; Brooks, Alyson M.; Willman, Beth
- The Astrophysical Journal, Vol. 761, Issue 1
Bayesian analysis of resolved stellar spectra: application to MMT/Hectochelle observations of the Draco dwarf spheroidal
journal, March 2015
- Walker, Matthew G.; Olszewski, Edward W.; Mateo, Mario
- Monthly Notices of the Royal Astronomical Society, Vol. 448, Issue 3
The cores of dwarf galaxy haloes
journal, December 1996
- Navarro, J. F.; Eke, V. R.; Frenk, C. S.
- Monthly Notices of the Royal Astronomical Society, Vol. 283, Issue 3
A Universal mass Profile for Dwarf Spheroidal Galaxies?
journal, October 2009
- Walker, Matthew G.; Mateo, Mario; Olszewski, Edward W.
- The Astrophysical Journal, Vol. 704, Issue 2
Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds
journal, June 1998
- Schlegel, David J.; Finkbeiner, Douglas P.; Davis, Marc
- The Astrophysical Journal, Vol. 500, Issue 2
The Discovery of an Ultra-Faint star Cluster in the Constellation of ursa Minor
journal, June 2012
- Muñoz, R. R.; Geha, M.; Côté, P.
- The Astrophysical Journal, Vol. 753, Issue 1
Dark matter cores and cusps: the case of multiple stellar populations in dwarf spheroidals: Multiple stellar population in dSphs
journal, October 2011
- Amorisco, N. C.; Evans, N. W.
- Monthly Notices of the Royal Astronomical Society, Vol. 419, Issue 1
Discovery of a Faint Outer halo Milky way star Cluster in the Southern sky
journal, April 2015
- Kim, Dongwon; Jerjen, Helmut; Milone, Antonino P.
- The Astrophysical Journal, Vol. 803, Issue 2
Spectroscopic Confirmation of the Dwarf Galaxies Hydra ii and Pisces ii and the Globular Cluster Laevens 1
journal, August 2015
- Kirby, Evan N.; Simon, Joshua D.; Cohen, Judith G.
- The Astrophysical Journal, Vol. 810, Issue 1
Variable stars in local group galaxies – IV. RR Lyrae stars in the central regions of the low-density galaxy Crater II
journal, June 2018
- Monelli, M.; Walker, A. R.; Martínez-Vázquez, C. E.
- Monthly Notices of the Royal Astronomical Society, Vol. 479, Issue 4
The Coupling Between the Core/Cusp and Missing Satellite Problems
journal, October 2012
- Peñarrubia, Jorge; Pontzen, Andrew; Walker, Matthew G.
- The Astrophysical Journal, Vol. 759, Issue 2
Dwarf Galaxies of the Local Group
journal, September 1998
- Mateo, Mario
- Annual Review of Astronomy and Astrophysics, Vol. 36, Issue 1
Clouds in arms
journal, September 2018
- Belokurov, Vasily A.; Erkal, Denis
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 482, Issue 1
A new Milky way halo star Cluster in the Southern Galactic sky
journal, April 2013
- Balbinot, E.; Santiago, B. X.; da Costa, L.
- The Astrophysical Journal, Vol. 767, Issue 2
A Virial core in the Sculptor Dwarf Spheroidal Galaxy
journal, July 2012
- Agnello, A.; Evans, N. W.
- The Astrophysical Journal, Vol. 754, Issue 2
Evidence against dissipation-less dark matter from observations of galaxy haloes
journal, August 1994
- Moore, Ben
- Nature, Vol. 370, Issue 6491
Local kinematics and the local standard of rest
journal, April 2010
- Schönrich, Ralph; Binney, James; Dehnen, Walter
- Monthly Notices of the Royal Astronomical Society, Vol. 403, Issue 4
THE PAndAS VIEW OF THE ANDROMEDA SATELLITE SYSTEM. II. DETAILED PROPERTIES OF 23 M31 DWARF SPHEROIDAL GALAXIES
journal, December 2016
- Martin, Nicolas F.; Ibata, Rodrigo A.; Lewis, Geraint F.
- The Astrophysical Journal, Vol. 833, Issue 2
Nine tiny star clusters in Gaia DR1, PS1, and DES
journal, January 2019
- Torrealba, G.; Belokurov, V.; Koposov, S. E.
- Monthly Notices of the Royal Astronomical Society, Vol. 484, Issue 2
Chemistry and Kinematics of the Late-Forming Dwarf Irregular Galaxies leo a, Aquarius, and Sagittarius dig
journal, December 2016
- Kirby, Evan N.; Rizzi, Luca; Held, Enrico V.
- The Astrophysical Journal, Vol. 834, Issue 1
Stacking the Invisibles: a Guided Search for Low-Luminosity Milky way Satellites
journal, September 2014
- Sesar, Branimir; Banholzer, Sophianna R.; Cohen, Judith G.
- The Astrophysical Journal, Vol. 793, Issue 2
Mass loss from dwarf spheroidal galaxies: the origins of shallow dark matter cores and exponential surface brightness profiles
journal, January 2005
- Read, J. I.; Gilmore, G.
- Monthly Notices of the Royal Astronomical Society, Vol. 356, Issue 1
A Magellanic origin of the DES dwarfs
journal, June 2016
- Jethwa, P.; Erkal, D.; Belokurov, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 461, Issue 2
The Universal Stellar Mass-Stellar Metallicity Relation for Dwarf Galaxies
journal, November 2013
- Kirby, Evan N.; Cohen, Judith G.; Guhathakurta, Puragra
- The Astrophysical Journal, Vol. 779, Issue 2
Snake in the Clouds: a new nearby dwarf galaxy in the Magellanic bridge*
journal, July 2018
- Koposov, Sergey E.; Walker, Matthew G.; Belokurov, Vasily
- Monthly Notices of the Royal Astronomical Society, Vol. 479, Issue 4
An Ultra-Faint Galaxy Candidate Discovered in Early data from the Magellanic Satellites Survey
journal, November 2016
- Drlica-Wagner, A.; Bechtol, K.; Allam, S.
- The Astrophysical Journal, Vol. 833, Issue 1
NIHAO – IV: core creation and destruction in dark matter density profiles across cosmic time
journal, January 2016
- Tollet, Edouard; Macciò, Andrea V.; Dutton, Aaron A.
- Monthly Notices of the Royal Astronomical Society, Vol. 456, Issue 4
Dwarf Galaxy Annihilation and Decay Emission Profiles for dark Matter Experiments
journal, March 2015
- Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew
- The Astrophysical Journal, Vol. 801, Issue 2
Population Gradients in Local Group Dwarf Spheroidal Galaxies
journal, December 2001
- Harbeck, Daniel; Grebel, Eva K.; Holtzman, Jon
- The Astronomical Journal, Vol. 122, Issue 6
Knowing the unknowns: uncertainties in simple estimators of galactic dynamical masses
journal, April 2017
- Campbell, David J. R.; Frenk, Carlos S.; Jenkins, Adrian
- Monthly Notices of the Royal Astronomical Society, Vol. 469, Issue 2
Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles
journal, May 2014
- Dutton, Aaron A.; Macciò, Andrea V.
- Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 4
Systematics in virial mass estimators for pressure-supported systems
journal, September 2018
- Errani, Raphaël; Peñarrubia, Jorge; Walker, Matthew G.
- Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 4
Standard globular cluster giant branches in the (M[SUB]I,/V-I/sub[/SUB] O) plane
journal, July 1990
- Da Costa, G. S.; Armandroff, T. E.
- The Astronomical Journal, Vol. 100
Crater 2: An Extremely Cold Dark Matter Halo
journal, April 2017
- Caldwell, Nelson; Walker, Matthew G.; Mateo, Mario
- The Astrophysical Journal, Vol. 839, Issue 1
Galactic Stellar and Substellar Initial Mass Function
journal, July 2003
- Chabrier, Gilles
- Publications of the Astronomical Society of the Pacific, Vol. 115, Issue 809
Ghostly tributaries to the Milky Way: charting the halo’s stellar streams with the Gaia DR2 catalogue
journal, September 2018
- Malhan, Khyati; Ibata, Rodrigo A.; Martin, Nicolas F.
- Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 3
SAGITTARIUS II, DRACO II AND LAEVENS 3: THREE NEW MILKY WAY SATELLITES DISCOVERED IN THE PAN-STARRS 1 3 π SURVEY
journal, October 2015
- Laevens, Benjamin P. M.; Martin, Nicolas F.; Bernard, Edouard J.
- The Astrophysical Journal, Vol. 813, Issue 1
First Data Release of the All-sky NOAO Source Catalog
journal, August 2018
- Nidever, David L.; Dey, Arjun; Olsen, Knut
- The Astronomical Journal, Vol. 156, Issue 3
Gaia Data Release 1 : Summary of the astrometric, photometric, and survey properties
journal, November 2016
- Brown, A. G. A.; Vallenari, A.; Prusti, T.
- Astronomy & Astrophysics, Vol. 595
The origin of the diverse morphologies and kinematics of Milky Way-mass galaxies in the FIRE-2 simulations
journal, September 2018
- Garrison-Kimmel, Shea; Hopkins, Philip F.; Wetzel, Andrew
- Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 3
The effect of a disc on the population of cuspy and cored dark matter substructures in Milky Way-like galaxies
journal, October 2016
- Errani, Raphaël; Peñarrubia, Jorge; Laporte, Chervin F. P.
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 465, Issue 1
NIHAO – XI. Formation of ultra-diffuse galaxies by outflows
journal, October 2016
- Di Cintio, Arianna; Brook, Chris B.; Dutton, Aaron A.
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 466, Issue 1
Dynamical evidence for a strong tidal interaction between the Milky Way and its satellite, Leo V
journal, January 2017
- Collins, Michelle L. M.; Tollerud, Erik J.; Sand, David J.
- Monthly Notices of the Royal Astronomical Society
Gaia DR2 proper motions of dwarf galaxies within 420 kpc : Orbits, Milky Way mass, tidal influences, planar alignments, and group infall
journal, November 2018
- Fritz, T. K.; Battaglia, G.; Pawlowski, M. S.
- Astronomy & Astrophysics, Vol. 619
Gaia Data Release 2 : Summary of the variability processing and analysis results
journal, October 2018
- Holl, B.; Audard, M.; Nienartowicz, K.
- Astronomy & Astrophysics, Vol. 618
The Cold Dark Matter Halos of Local Group Dwarf Spheroidals
journal, January 2008
- Penarrubia, Jorge; McConnachie, Alan W.; Navarro, Julio F.
- The Astrophysical Journal, Vol. 672, Issue 2
Measuring Reddening with Sloan Digital sky Survey Stellar Spectra and Recalibrating sfd
journal, August 2011
- Schlafly, Edward F.; Finkbeiner, Douglas P.
- The Astrophysical Journal, Vol. 737, Issue 2
ULySS : a full spectrum fitting package
journal, May 2009
- Koleva, M.; Prugniel, Ph.; Bouchard, A.
- Astronomy & Astrophysics, Vol. 501, Issue 3
A Method for Measuring (Slopes of) the mass Profiles of Dwarf Spheroidal Galaxies
journal, November 2011
- Walker, Matthew G.; Peñarrubia, Jorge
- The Astrophysical Journal, Vol. 742, Issue 1
The Universe behind the Milky Way
journal, September 2000
- Kraan-Korteweg, Renée C.; Lahav, Ofer
- Astronomy and Astrophysics Review, Vol. 10, Issue 3
The Tidal Evolution of Local Group Dwarf Spheroidals
journal, January 2008
- Penarrubia, Jorge; Navarro, Julio F.; McConnachie, Alan W.
- The Astrophysical Journal, Vol. 673, Issue 1
The upper bound on the lowest mass halo
journal, September 2017
- Jethwa, P.; Erkal, D.; Belokurov, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 473, Issue 2
On the run: mapping the escape speed across the Galaxy with SDSS
journal, March 2017
- Williams, Angus A.; Belokurov, Vasily; Casey, Andrew R.
- Monthly Notices of the Royal Astronomical Society, Vol. 468, Issue 2
Charting Unexplored Dwarf Galaxy Territory with rr Lyrae
journal, October 2015
- Baker, Mariah; Willman, Beth
- The Astronomical Journal, Vol. 150, Issue 5
The origin of ultra diffuse galaxies: stellar feedback and quenching
journal, May 2018
- Chan, T. K.; Kereš, D.; Wetzel, A.
- Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 1
The dependence of dark matter profiles on the stellar-to-halo mass ratio: a prediction for cusps versus cores
journal, November 2013
- Di Cintio, Arianna; Brook, Chris B.; Macciò, Andrea V.
- Monthly Notices of the Royal Astronomical Society, Vol. 437, Issue 1
Beasts of the Southern Wild: Discovery of nine Ultra Faint Satellites in the Vicinity of the Magellanic Clouds
journal, May 2015
- Koposov, Sergey E.; Belokurov, Vasily; Torrealba, Gabriel
- The Astrophysical Journal, Vol. 805, Issue 2
Cosmic structure as the quantum interference of a coherent dark wave
journal, June 2014
- Schive, Hsi-Yu; Chiueh, Tzihong; Broadhurst, Tom
- Nature Physics, Vol. 10, Issue 7
Dark Matter Heating and Early core Formation in Dwarf Galaxies
journal, June 2014
- Madau, Piero; Shen, Sijing; Governato, Fabio
- The Astrophysical Journal, Vol. 789, Issue 1
Deep SOAR follow-up photometry of two Milky Way outer-halo companions discovered with Dark Energy Survey
journal, April 2018
- Luque, E.; Santiago, B.; Pieres, A.
- Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 2
Systemic Proper Motions of Milky Way Satellites from Stellar Redshifts: The Carina, Fornax, Sculptor, and Sextans Dwarf Spheroidals
journal, November 2008
- Walker, Matthew G.; Mateo, Mario; Olszewski, Edward W.
- The Astrophysical Journal, Vol. 688, Issue 2
Tidal disruption of dwarf spheroidal galaxies: the strange case of Crater II
journal, May 2018
- Sanders, Jason L.; Evans, N. W.; Dehnen, W.
- Monthly Notices of the Royal Astronomical Society, Vol. 478, Issue 3
A new extensive library of PHOENIX stellar atmospheres and synthetic spectra
journal, April 2013
- Husser, T. -O.; Wende-von Berg, S.; Dreizler, S.
- Astronomy & Astrophysics, Vol. 553
Ensemble samplers with affine invariance
journal, January 2010
- Goodman, Jonathan; Weare, Jonathan
- Communications in Applied Mathematics and Computational Science, Vol. 5, Issue 1
Dwarf galaxy mass estimators versus cosmological simulations
journal, September 2017
- González-Samaniego, Alejandro; Bullock, James S.; Boylan-Kolchin, Michael
- Monthly Notices of the Royal Astronomical Society, Vol. 472, Issue 4
The shape of the Galactic halo with Gaia DR2 RR Lyrae. Anatomy of an ancient major merger
journal, October 2018
- Iorio, Giuliano; Belokurov, Vasily
- Monthly Notices of the Royal Astronomical Society, Vol. 482, Issue 3
fire in the field: simulating the threshold of galaxy formation
journal, July 2017
- Fitts, Alex; Boylan-Kolchin, Michael; Elbert, Oliver D.
- Monthly Notices of the Royal Astronomical Society, Vol. 471, Issue 3
Digging deeper into the Southern skies: a compact Milky Way companion discovered in first-year Dark Energy Survey data
journal, February 2016
- Luque, E.; Queiroz, A.; Santiago, B.
- Monthly Notices of the Royal Astronomical Society, Vol. 458, Issue 1
The Structure of Cold Dark Matter Halos
journal, May 1996
- Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M.
- The Astrophysical Journal, Vol. 462
Detection of satellite remnants in the Galactic halo with Gaia – III. Detection limits for ultrafaint dwarf galaxies
journal, August 2015
- Antoja, T.; Mateu, C.; Aguilar, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 453, Issue 1
Dark Halos: The Flattening of the Density Cusp by Dynamical Friction
journal, October 2001
- El‐Zant, Amr; Shlosman, Isaac; Hoffman, Yehuda
- The Astrophysical Journal, Vol. 560, Issue 2
The origin of failed subhaloes and the common mass scale of the Milky Way satellite galaxies
journal, October 2009
- Okamoto, Takashi; Frenk, Carlos S.
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 399, Issue 1
Kim 3: an Ultra-Faint star Cluster in the Constellation of Centaurus
journal, March 2016
- Kim, Dongwon; Jerjen, Helmut; Mackey, Dougal
- The Astrophysical Journal, Vol. 820, Issue 2
A Universal Density Profile from Hierarchical Clustering
journal, December 1997
- Navarro, Julio F.; Frenk, Carlos S.; White, Simon D. M.
- The Astrophysical Journal, Vol. 490, Issue 2
Gaia Data Release 2 : Summary of the contents and survey properties
journal, August 2018
- Brown, A. G. A.; Vallenari, A.; Prusti, T.
- Astronomy & Astrophysics, Vol. 616
The Binary Fraction of Stars in Dwarf Galaxies: The Case of Leo II
journal, May 2017
- Spencer, Meghin E.; Mateo, Mario; Walker, Matthew G.
- The Astronomical Journal, Vol. 153, Issue 6
Multi-Element Abundance Measurements from Medium-Resolution Spectra. ii. Catalog of Stars in Milky way Dwarf Satellite Galaxies
journal, November 2010
- Kirby, Evan N.; Guhathakurta, Puragra; Simon, Joshua D.
- The Astrophysical Journal Supplement Series, Vol. 191, Issue 2
The Milky Way stellar halo out to 40 kpc: squashed, broken but smooth: The Milky Way stellar halo
journal, July 2011
- Deason, A. J.; Belokurov, V.; Evans, N. W.
- Monthly Notices of the Royal Astronomical Society, Vol. 416, Issue 4
Discovery of two neighbouring satellites in the Carina constellation with MagLiteS
journal, January 2018
- Torrealba, G.; Belokurov, V.; Koposov, S. E.
- Monthly Notices of the Royal Astronomical Society, Vol. 475, Issue 4
A Trio of New Local Group Galaxies with Extreme Properties
journal, December 2008
- McConnachie, Alan W.; Huxor, Avon; Martin, Nicolas F.
- The Astrophysical Journal, Vol. 688, Issue 2
Smash 1: a very Faint Globular Cluster Disrupting in the Outer Reaches of the lmc?
journal, October 2016
- Martin, Nicolas F.; Jungbluth, Valentin; Nidever, David L.
- The Astrophysical Journal, Vol. 830, Issue 1
emcee : The MCMC Hammer
journal, March 2013
- Foreman-Mackey, Daniel; Hogg, David W.; Lang, Dustin
- Publications of the Astronomical Society of the Pacific, Vol. 125, Issue 925
A Hero'S Little Horse: Discovery of a Dissolving star Cluster in Pegasus
journal, January 2015
- Kim, Dongwon; Jerjen, Helmut
- The Astrophysical Journal, Vol. 799, Issue 1
parsec : stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
journal, October 2012
- Bressan, Alessandro; Marigo, Paola; Girardi, Léo
- Monthly Notices of the Royal Astronomical Society, Vol. 427, Issue 1
Triangulum II. Not Especially Dense After All
journal, March 2017
- Kirby, Evan N.; Cohen, Judith G.; Simon, Joshua D.
- The Astrophysical Journal, Vol. 838, Issue 2
RR Lyrae Variables in the Crater II Dwarf Galaxy
journal, June 2018
- Joo, Seok-Joo; Kyeong, Jaemann; Yang, Soung-Chul
- The Astrophysical Journal, Vol. 861, Issue 1
SEARCHING FOR DARK MATTER ANNIHILATION IN RECENTLY DISCOVERED MILKY WAY SATELLITES WITH FERMI -LAT
journal, January 2017
- Albert, A.; Anderson, B.; Bechtol, K.
- The Astrophysical Journal, Vol. 834, Issue 2
Gaia 1 and 2. A pair of new Galactic star clusters
journal, May 2017
- Koposov, Sergey E.; Belokurov, V.; Torrealba, G.
- Monthly Notices of the Royal Astronomical Society, Vol. 470, Issue 3
Dark matter cores all the way down
journal, March 2016
- Read, J. I.; Agertz, O.; Collins, M. L. M.
- Monthly Notices of the Royal Astronomical Society, Vol. 459, Issue 3
The Dark Energy Survey view of the Sagittarius stream: discovery of two faint stellar system candidates
journal, February 2017
- Luque, E.; Pieres, A.; Santiago, B.
- Monthly Notices of the Royal Astronomical Society, Vol. 468, Issue 1
Internal Kinematics of the Fornax Dwarf Spheroidal Galaxy
journal, April 2006
- Walker, Matthew G.; Mateo, Mario; Olszewski, Edward W.
- The Astronomical Journal, Vol. 131, Issue 4
CONTRASTING GALAXY FORMATION FROM QUANTUM WAVE DARK MATTER, ψ DM, WITH ΛCDM, USING PLANCK AND HUBBLE DATA
journal, February 2016
- Schive, Hsi-Yu; Chiueh, Tzihong; Broadhurst, Tom
- The Astrophysical Journal, Vol. 818, Issue 1
A new galaxy in the local group: The antlia dwarf galaxy.
journal, September 1997
- Whiting, Alan B.; Irwin, M. J.; Hau, George K. T.
- The Astronomical Journal, Vol. 114
Accurate Stellar Kinematics at Faint Magnitudes: Application to the BoÖTes i Dwarf Spheroidal Galaxy
journal, July 2011
- Koposov, Sergey E.; Gilmore, G.; Walker, M. G.
- The Astrophysical Journal, Vol. 736, Issue 2
Ships Passing in the Night: Spectroscopic Analysis of Two Ultra-faint Satellites in the Constellation Carina
journal, April 2018
- Li, T. S.; Simon, J. D.; Pace, A. B.
- The Astrophysical Journal, Vol. 857, Issue 2
The mass distribution and gravitational potential of the Milky Way
journal, October 2016
- McMillan, Paul J.
- Monthly Notices of the Royal Astronomical Society, Vol. 465, Issue 1
The Masses of Local Group Dwarf Spheroidal Galaxies: the Death of the Universal mass Profile
journal, February 2014
- Collins, Michelle L. M.; Chapman, Scott C.; Rich, R. M.
- The Astrophysical Journal, Vol. 783, Issue 1
The stellar dynamics of omega centauri.
journal, September 1997
- Merritt, David; Meylan, Georges; Mayor, Michel
- The Astronomical Journal, Vol. 114
In-flight calibration of Hitomi Soft X-ray Spectrometer. (1) Background
journal, March 2018
- Kilbourne, Caroline A.; Sawada, Makoto; Tsujimoto, Masahiro
- Publications of the Astronomical Society of Japan, Vol. 70, Issue 2
The Imprint of Cosmic Reionization on the Luminosity Function of Galaxies
journal, August 2018
- Bose, Sownak; Deason, Alis J.; Frenk, Carlos S.
- The Astrophysical Journal, Vol. 863, Issue 2
A HUBBLE SPACE TELESCOPE STUDY OF THE ENIGMATIC MILKY WAY HALO GLOBULAR CLUSTER CRATER
journal, May 2016
- Weisz, Daniel R.; Koposov, Sergey E.; Dolphin, Andrew E.
- The Astrophysical Journal, Vol. 822, Issue 1
Evidence for an Intermediate-mass Milky Way from Gaia DR2 Halo Globular Cluster Motions
journal, March 2019
- Watkins, Laura L.; van der Marel, Roeland P.; Sohn, Sangmo Tony
- The Astrophysical Journal, Vol. 873, Issue 2
How supernova feedback turns dark matter cusps into cores: Supernova feedback and dark matter cores
journal, March 2012
- Pontzen, Andrew; Governato, Fabio
- Monthly Notices of the Royal Astronomical Society, Vol. 421, Issue 4
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
Dark matter annihilation and decay in dwarf spheroidal galaxies: the classical and ultrafaint dSphs
journal, August 2015
- Bonnivard, V.; Combet, C.; Daniel, M.
- Monthly Notices of the Royal Astronomical Society, Vol. 453, Issue 1
A new Milky way Satellite Discovered in the Subaru/Hyper Suprime-Cam Survey
journal, November 2016
- Homma, Daisuke; Chiba, Masashi; Okamoto, Sakurako
- The Astrophysical Journal, Vol. 832, Issue 1
Breathing Fire: how Stellar Feedback Drives Radial Migration, Rapid size Fluctuations, and Population Gradients in Low-Mass Galaxies
journal, March 2016
- El-Badry, Kareem; Wetzel, Andrew; Geha, Marla
- The Astrophysical Journal, Vol. 820, Issue 2
Stellar Feedback in Dwarf Galaxy Formation
journal, January 2008
- Mashchenko, S.; Wadsley, J.; Couchman, H. M. P.
- Science, Vol. 319, Issue 5860
galpy: A python LIBRARY FOR GALACTIC DYNAMICS
journal, February 2015
- Bovy, Jo
- The Astrophysical Journal Supplement Series, Vol. 216, Issue 2
Four new Stellar Debris Streams in the Galactic halo
journal, March 2009
- Grillmair, C. J.
- The Astrophysical Journal, Vol. 693, Issue 2
The Observed Properties of Dwarf Galaxies in and Around the Local Group
journal, June 2012
- McConnachie, Alan W.
- The Astronomical Journal, Vol. 144, Issue 1
The Gaia mission
journal, November 2016
- Prusti, T.; de Bruijne, J. H. J.; Brown, A. G. A.
- Astronomy & Astrophysics, Vol. 595
Proper Motion of Milky Way Dwarf Spheroidals from Line-of-Sight Velocities
journal, July 2008
- Kaplinghat, Manoj; Strigari, Louis E.
- The Astrophysical Journal, Vol. 682, Issue 2
Magellan/M2fs Spectroscopy of Tucana 2 and grus 1
journal, February 2016
- Walker, Matthew G.; Mateo, Mario; Olszewski, Edward W.
- The Astrophysical Journal, Vol. 819, Issue 1
Nearest Neighbor: The Low-mass Milky Way Satellite Tucana III
journal, March 2017
- Simon, J. D.; Li, T. S.; Drlica-Wagner, A.
- The Astrophysical Journal, Vol. 838, Issue 1
The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater
journal, April 2016
- Torrealba, G.; Koposov, S. E.; Belokurov, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 459, Issue 3
The Physical Nature of the Cosmic Accretion of Baryons and dark Matter into Halos and Their Galaxies
journal, July 2015
- Wetzel, Andrew R.; Nagai, Daisuke
- The Astrophysical Journal, Vol. 808, Issue 1
Fuzzy Cold Dark Matter: The Wave Properties of Ultralight Particles
journal, August 2000
- Hu, Wayne; Barkana, Rennan; Gruzinov, Andrei
- Physical Review Letters, Vol. 85, Issue 6
DEVELOPMENT OF THE MODEL OF GALACTIC INTERSTELLAR EMISSION FOR STANDARD POINT-SOURCE ANALYSIS OF FERMI LARGE AREA TELESCOPE DATA
journal, April 2016
- Acero, F.; Ackermann, M.; Ajello, M.
- The Astrophysical Journal Supplement Series, Vol. 223, Issue 2
Small-Scale Challenges to the Λ CDM Paradigm
journal, August 2017
- Bullock, James S.; Boylan-Kolchin, Michael
- Annual Review of Astronomy and Astrophysics, Vol. 55, Issue 1
The structure of cold dark matter halos
journal, September 1991
- Dubinski, John; Carlberg, R. G.
- The Astrophysical Journal, Vol. 378
Exclusion of Canonical Weakly Interacting Massive Particles by Joint Analysis of Milky Way Dwarf Galaxies with Data from the Fermi Gamma-Ray Space Telescope
journal, December 2011
- Geringer-Sameth, Alex; Koushiappas, Savvas M.
- Physical Review Letters, Vol. 107, Issue 24
Observational Evidence for Self-Interacting Cold Dark Matter
journal, April 2000
- Spergel, David N.; Steinhardt, Paul J.
- Physical Review Letters, Vol. 84, Issue 17
The Size-Virial Radius Relation of Galaxies
journal, February 2013
- Kravtsov, Andrey V.
- The Astrophysical Journal, Vol. 764, Issue 2
The case for a cold dark matter cusp in Draco
journal, August 2018
- Read, J. I.; Walker, M. G.; Steger, P.
- Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 1
Response of Dark Matter Halos to Condensation of Baryons: Cosmological Simulations and Improved Adiabatic Contraction Model
journal, November 2004
- Gnedin, Oleg Y.; Kravtsov, Andrey V.; Klypin, Anatoly A.
- The Astrophysical Journal, Vol. 616, Issue 1
Gaia Data Release 2 : Kinematics of globular clusters and dwarf galaxies around the Milky Way★
journal, August 2018
- Helmi, A.; van Leeuwen, F.; McMillan, P. J.
- Astronomy & Astrophysics, Vol. 616
Kinematics and Chemistry of Recently Discovered Reticulum 2 and Horologium 1 Dwarf Galaxies
journal, September 2015
- Koposov, Sergey E.; Casey, Andrew R.; Belokurov, Vasily
- The Astrophysical Journal, Vol. 811, Issue 1
Forty-Seven Milky Way-Sized, Extremely Diffuse Galaxies in the coma Cluster
journal, January 2015
- van Dokkum, Pieter G.; Abraham, Roberto; Merritt, Allison
- The Astrophysical Journal, Vol. 798, Issue 2
Gaia Data Release 2 : Variable stars in the colour-absolute magnitude diagram★★★
journal, March 2019
- Eyer, L.; Rimoldini, L.; Audard, M.
- Astronomy & Astrophysics, Vol. 623
Portrait of a dark Horse: a Photometric and Spectroscopic Study of the Ultra-Faint Milky way Satellite Pegasus iii
journal, December 2016
- Kim, Dongwon; Jerjen, Helmut; Geha, Marla
- The Astrophysical Journal, Vol. 833, Issue 1
Farthest Neighbor: The Distant Milky Way Satellite Eridanus II
journal, March 2017
- Li, T. S.; Simon, J. D.; Drlica-Wagner, A.
- The Astrophysical Journal, Vol. 838, Issue 1
At the survey limits: discovery of the Aquarius 2 dwarf galaxy in the VST ATLAS and the SDSS data
journal, August 2016
- Torrealba, G.; Koposov, S. E.; Belokurov, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 463, Issue 1
Proper motions and dynamics of the Milky Way globular cluster system from Gaia DR2
journal, January 2019
- Vasiliev, Eugene
- Monthly Notices of the Royal Astronomical Society, Vol. 484, Issue 2
Stealth Galaxies in the halo of the Milky way
journal, June 2010
- Bullock, James S.; Stewart, Kyle R.; Kaplinghat, Manoj
- The Astrophysical Journal, Vol. 717, Issue 2
Complexity on Small Scales: The Metallicity Distribution of the Carina Dwarf Spheroidal Galaxy
journal, February 2006
- Koch, Andreas; Grebel, Eva K.; Wyse, Rosemary F. G.
- The Astronomical Journal, Vol. 131, Issue 2
M31 Transverse Velocity and Local Group Mass from Satellite Kinematics
journal, May 2008
- van der Marel, Roeland P.; Guhathakurta, Puragra
- The Astrophysical Journal, Vol. 678, Issue 1