Highest Redshift Image of Neutral Hydrogen in Emission: A CHILES Detection of a Starbursting Galaxy at z = 0.376
| Autor: | Jay Strader, R. Salinas, Kathryn Kreckel, Julia Gross, Christopher A. Hales, Richard Dodson, Ximena Fernández, J. H. van Gorkom, Andreas Wicenec, Daniel J. Pisano, Natasha Maddox, Jennifer Donovan Meyer, Marc Verheijen, Evangelia Tremou, R. Chávez, Attila Popping, Martin Meyer, Lucas Hunt, D. M. Lucero, Min S. Yun, K. Golap, Aeree Chung, Emmanuel Momjian, Patricia A. Henning, Matthew A. Bershady, Yara L. Jaffé, Monica Sanchez-Barrantes, David Schiminovich, John E. Hibbard, Kelley M. Hess, Nick Scoville, Eric M. Wilcots, Tom Oosterloo, Laura Chomiuk, Hansung B. Gim |
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| Přispěvatelé: | Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Stellar mass
Large Millimeter Telescope FOS: Physical sciences galaxies: starburst Astrophysics H-I MU-M SCALING RELATIONS 01 natural sciences TELESCOPE ADVANCED CAMERA Radio telescope COSMOS SURVEY 0103 physical sciences MOLECULAR GAS CONTENT Galaxy formation and evolution STAR-FORMING GALAXIES 010306 general physics 010303 astronomy & astrophysics Physics Luminous infrared galaxy radio lines: galaxies LEGACY SURVEY Astronomy and Astrophysics Astrophysics - Astrophysics of Galaxies Galaxy Redshift Accretion (astrophysics) ATOMIC GAS Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) galaxies: evolution STELLAR MASS |
| Zdroj: | The Astrophysical Journal, 824(1):L1. IOP PUBLISHING LTD |
| ISSN: | 0004-637X |
| Popis: | Our current understanding of galaxy evolution still has many uncertainties associated with the details of accretion, processing, and removal of gas across cosmic time. The next generation of radio telescopes will image the neutral hydrogen (HI) in galaxies over large volumes at high redshifts, which will provide key insights into these processes. We are conducting the COSMOS HI Large Extragalactic Survey (CHILES) with the Karl G. Jansky Very Large Array, which is the first survey to simultaneously observe HI from z=0 to z~0.5. Here, we report the highest redshift HI 21-cm detection in emission to date of the luminous infrared galaxy (LIRG) COSMOS J100054.83+023126.2 at z=0.376 with the first 178 hours of CHILES data. The total HI mass is $(2.9\pm1.0)\times10^{10}~M_\odot$, and the spatial distribution is asymmetric and extends beyond the galaxy. While optically the galaxy looks undisturbed, the HI distribution suggests an interaction with candidate a candidate companion. In addition, we present follow-up Large Millimeter Telescope CO observations that show it is rich in molecular hydrogen, with a range of possible masses of $(1.8-9.9)\times10^{10}~M_\odot$. This is the first study of the HI and CO in emission for a single galaxy beyond z~0.2. 7 pages, 5 figures, accepted for publication in ApJL |
| Databáze: | OpenAIRE |
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