The Origin of Faint Tidal Features Around Galaxies in the RESOLVE Survey
| Autor: | Callie Hood, Mark A. Norris, David Hendel, Kathleen D. Eckert, Ian P. Dell'Antonio, David V. Stark, Sheila J. Kannappan, Amanda J. Moffett |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
COSMIC cancer database 010308 nuclear & particles physics Star formation F510 F540 FOS: Physical sciences Astronomy and Astrophysics Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics F500 Mass ratio Astrophysics - Astrophysics of Galaxies 01 natural sciences Quantitative Biology::Genomics Accretion (astrophysics) Galaxy Lower limit Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) 0103 physical sciences Halo 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics |
| ISSN: | 0004-637X |
| Popis: | We study tidal features (TFs) around galaxies in the REsolved Spectroscopy of a Local VolumE (RESOLVE) survey. Our sample consists of 1048 RESOLVE galaxies that overlap with the DECam Legacy Survey, which reaches an r-band 3$\sigma$ depth of $\sim$27.9 mag arcsec$^{-2}$ for a 100 arcsec$^{2}$ feature. Images were masked, smoothed, and inspected for TFs like streams, shells, or tails/arms. We find TFs in 17$^{\pm 2} \%$ of our galaxies, setting a lower limit on the true frequency. The frequency of TFs in the gas-poor (gas-to-stellar mass ratio $ Comment: 24 pages, 26 Figures, accepted for publication in ApJ. Full version of table 2 is available at http://resolve.astro.unc.edu |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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