Discovery of two neighboring satellites in the Carina constellation with MagLiteS
We report the discovery of two ultra-faint satellites in the vicinity of the Large Magellanic Cloud (LMC) in data from the Magellanic Satellites Survey (MagLiteS). Situated 18$^{\circ}$ ($\sim 20$ kpc) from the LMC and separated from each other by only $18^\prime$, Carina~II and III form an intrigui...
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| Hauptverfasser: | , , , |
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| Dokumenttyp: | Article (Journal) Kapitel/Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
22 Jan 2018
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| In: |
Arxiv
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| DOI: | 10.48550/arXiv.1801.07279 |
| Online-Zugang: | Resolving-System, kostenfrei, Volltext: https://doi.org/10.48550/arXiv.1801.07279 Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1801.07279 
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| Verfasserangaben: | G. Torrealba, V. Belokurov, S.E. Koposov, K. Bechtol, A. Drlica-Wagner, K.A.G. Olsen, A.K. Vivas, B. Yanny, P. Jethwa, A.R. Walker, T.S. Li, S. Allam, B.C. Conn, C. Gallart, R.A. Gruendl, D.J. James, M.D. Johnson, K. Kuehn, N. Kuropatkin, N.F. Martin, D. Martinez-Delgado, D.L. Nidever, N.E.D. Noël, J.D. Simon, G.S. Stringfellow, D.L. Tucker |
MARC
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| 100 | 1 | |a Torrealba, Gabriel |e VerfasserIn |0 (DE-588)1279895659 |0 (DE-627)1833074513 |4 aut | |
| 245 | 1 | 0 | |a Discovery of two neighboring satellites in the Carina constellation with MagLiteS |c G. Torrealba, V. Belokurov, S.E. Koposov, K. Bechtol, A. Drlica-Wagner, K.A.G. Olsen, A.K. Vivas, B. Yanny, P. Jethwa, A.R. Walker, T.S. Li, S. Allam, B.C. Conn, C. Gallart, R.A. Gruendl, D.J. James, M.D. Johnson, K. Kuehn, N. Kuropatkin, N.F. Martin, D. Martinez-Delgado, D.L. Nidever, N.E.D. Noël, J.D. Simon, G.S. Stringfellow, D.L. Tucker |
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| 520 | |a We report the discovery of two ultra-faint satellites in the vicinity of the Large Magellanic Cloud (LMC) in data from the Magellanic Satellites Survey (MagLiteS). Situated 18$^{\circ}$ ($\sim 20$ kpc) from the LMC and separated from each other by only $18^\prime$, Carina~II and III form an intriguing pair. By simultaneously modeling the spatial and the color-magnitude stellar distributions, we find that both Carina~II and Carina~III are likely dwarf galaxies, although this is less clear for Carina~III. There are in fact several obvious differences between the two satellites. While both are well described by an old and metal poor population, Carina~II is located at $\sim 36$ kpc from the Sun, with $M_V\sim-4.5$ and $r_h\sim 90$ pc, and it is further confirmed by the discovery of 3 RR Lyrae at the right distance. In contrast, Carina~III is much more elongated, measured to be fainter ($M_V\sim-2.4$), significantly more compact ($r_h\sim30$ pc), and closer to the Sun, at $\sim 28$ kpc, placing it only 8 kpc away from Car~II. Together with several other systems detected by the Dark Energy Camera, Carina~II and III form a strongly anisotropic cloud of satellites in the vicinity of the Magellanic Clouds. | ||
| 650 | 4 | |a Astrophysics - Astrophysics of Galaxies | |
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| 700 | 1 | |a Noël, Noelia E. D. |e VerfasserIn |4 aut | |
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