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On the Variation of Gas Depletion Time

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

D. Utomo ,
L. Blitz ,
A. Bolatto ,
T. Wong ,
A. Leroy ,
S. Vogel  and
EDGE-CALIFA Collaboration
D. Utomo
Affiliation:
Department of Astronomy, University of California, Berkeley, CA 94720
L. Blitz
Affiliation:
Department of Astronomy, University of California, Berkeley, CA 94720
A. Bolatto
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD 20742
T. Wong
Affiliation:
Department of Astronomy, University of Illinois, Urbana, IL 61801
A. Leroy
Affiliation:
Department of Astronomy, The Ohio State University, Columbus, OH 43210
S. Vogel
Affiliation:
Department of Astronomy, University of Maryland, College Park, MD 20742
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Abstract

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We present an updated status of the EDGE project, which is a survey of 125 local galaxies in the 12CO(1−0) and 13CO(1−0) lines. We combine the molecular data of the EDGE survey with the stellar and ionized gas maps of the CALIFA survey to give a comprehensive view of the dependence of the star formation efficiency, or equivalently, the molecular gas depletion time, on various local environments, such as the stellar surface density, metallicity, and radius from the galaxy center. This study will provide insight into the parameters that drive the star formation efficiency in galaxies at z ~ 0.

Keywords

Galaxies: star formationgalaxies: ISMgalaxies: stellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , pp. 258 - 261
Copyright
Copyright © International Astronomical Union 2016 

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