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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
HIGHEST REDSHIFT IMAGE of NEUTRAL HYDROGEN in EMISSION: A CHILES DETECTION of A STARBURSTING GALAXY at z = 0.376
Astrophysical Journal Letters, Volume 824, No. 1, Article L1, Year 2016
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Description
Our current understanding of galaxy evolution still has many uncertainties associated with the details of the accretion, processing, and removal of gas across cosmic time. The next generation of radio telescopes will image the neutral hydrogen (H i) in galaxies over large volumes at high redshifts, which will provide key insights into these processes. We are conducting the COSMOS H i Large Extragalactic Survey (CHILES) with the Karl G. Jansky Very Large Array, which is the first survey to simultaneously observe H i from z = 0 to z ∼ 0.5. Here, we report the highest redshift H i 21 cm detection in emission to date of the luminous infrared galaxy COSMOS J100054.83+023126.2 at z = 0.376 with the first 178 hr of CHILES data. The total H i mass is (2.9 ± 1.0) × 1010 M o and the spatial distribution is asymmetric and extends beyond the galaxy. While optically the galaxy looks undisturbed, the H i distribution suggests an interaction with 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) × 1010 M o. This is the first study of the H i and CO in emission for a single galaxy beyond z ∼ 0.2. © 2016. The American Astronomical Society. All rights reserved..
Authors & Co-Authors
Fernández, Ximena
United States, New Brunswick
Rutgers University–new Brunswick
United States, New York
Columbia University
Gim, Hansung B.
United States, Amherst
University of Massachusetts Amherst
Yun, Minsu
United States, Amherst
University of Massachusetts Amherst
Momjian, Emmanuel
United States, Socorro
National Radio Astronomy Observatory Socorro
Popping, Attila
Australia, Perth
International Centre for Radio Astronomy Research
Australia, Sydney
Arc Centre of Excellence for All-sky Astrophysics
Chomiuk, Laura B.
United States, East Lansing
Michigan State University
Hess, Kelley M.
Netherlands, Groningen
Rijksuniversiteit Groningen
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Hunt, Lucas R.
United States, Morgantown
West Virginia University
Kreckel, Kathryn
Germany, Heidelberg
Max Planck Institute for Astronomy
Lucero, Danielle M.
Netherlands, Groningen
Rijksuniversiteit Groningen
Maddox, Natasha
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Oosterloo, Thomas A.
Netherlands, Groningen
Rijksuniversiteit Groningen
Netherlands, Dwingeloo
Netherlands Foundation for Research in Astronomy
Pisano, D. J.
United States, Morgantown
West Virginia University
Verheijen, Marc A.W.
Netherlands, Groningen
Rijksuniversiteit Groningen
Hales, Christopher A.
United States, Socorro
National Radio Astronomy Observatory Socorro
Chung, Aeree
South Korea, Seoul
Yonsei University
Dodson, Richard G.
Australia, Perth
International Centre for Radio Astronomy Research
Golap, Kumar
United States, Socorro
National Radio Astronomy Observatory Socorro
Henning, Patricia A.
United States, Albuquerque
The University of new Mexico
Hibbard, John E.
United States, Charlottesville
National Radio Astronomy Observatory
Jaffé, Yara L.
Chile, Santiago
European Southern Observatory Santiago
Meyer, Jennifer Donovan
United States, Charlottesville
National Radio Astronomy Observatory
Meyer, Martin J.
Australia, Perth
International Centre for Radio Astronomy Research
Schiminovich, David
United States, New York
Columbia University
Wilcots, Eric M.
United States, Madison
University of Wisconsin-madison
Bershady, Matthew A.
United States, Madison
University of Wisconsin-madison
Scoville, Nicholas Z.
United States, Pasadena
California Institute of Technology
Strader, Jay
United States, East Lansing
Michigan State University
Tremou, Evangelia
United States, East Lansing
Michigan State University
Salinas, Ricardo
United States, East Lansing
Michigan State University
Statistics
Citations: 87
Authors: 30
Affiliations: 18
Identifiers
Doi:
10.3847/2041-8205/824/1/L1
ISSN:
20418205
Research Areas
Environmental
Study Design
Cross Sectional Study
Cohort Study
Study Approach
Quantitative