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Driving the Gaseous Evolution of Massive Galaxies in the Early Universe

Riechers, Dominik A. (2012) Driving the Gaseous Evolution of Massive Galaxies in the Early Universe. In: Galaxy Mergers in an Evolving Universe. ASP Conference Series. No.477. Astronomical Society of the Pacific , San Francisco, CA, pp. 215-223. ISBN 9781583818381.

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Studies of the molecular interstellar medium that fuels star formation and supermassive black hole growth in galaxies at cosmological distances have undergone tremendous progress over the past few years. Based on the detection of molecular gas in >120 galaxies at z=1 to 6.4, we have obtained detailed insight on how the amount and physical properties of this material in a galaxy are connected to its current star formation rate over a range of galaxy populations. Studies of the gas dynamics and morphology at high spatial resolution allow us to distinguish between gas-rich mergers in different stages along the “merger sequence” and disk galaxies. Observations of the most massive gas-rich starburst galaxies out to z>5 provide insight into the role of cosmic environment for the early growth of present-day massive spheroidal galaxies. Large-area submillimeter surveys have revealed a rare population of extremely far-infrared-luminous gas-rich high-redshift objects, which is dominated by strongly lensed, massive starburst galaxies. These discoveries have greatly improved our understanding of the role of molecular gas in the evolution of massive galaxies through cosmic time.

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Riechers, Dominik A.0000-0001-9585-1462
Additional Information:© 2012 Astronomical Society of the Pacific. I would like to thank the organizers of “Galaxy Mergers in an Evolving Universe” for the invitation to this diverse and stimulating conference. Also, I would like to thank my collaborators on studies related to this subject, in particular Frank Bertoldi, Peter Capak, Chris Carilli, Asantha Cooray, Pierre Cox, Emanuele Daddi, Roberto Neri, Nick Scoville, Fabian Walter, and Ran Wang. I acknowledge support from NASA through a Spitzer Space Telescope grant.
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Series Name:ASP Conference Series
Issue or Number:477
Record Number:CaltechAUTHORS:20120227-082914144
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:29478
Deposited By: Tony Diaz
Deposited On:24 Apr 2012 22:48
Last Modified:03 Oct 2019 03:41

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