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High molecular gas fractions in normal massive star-forming galaxies in the young Universe
TLDR
A survey of molecular gas in samples of typical massive-star-forming galaxies at mean redshifts of about 1.2 and 2.3 reveals that distant star forming galaxies were indeed gas rich, and that the star formation efficiency is not strongly dependent on cosmic epoch. Expand
An expanded Mbh–σ diagram, and a new calibration of active galactic nuclei masses
We present an updated and improved Mbh–σ diagram containing 64 galaxies for which Mbh measurements (not just upper limits) are available. Because of new and increased black hole masses at theExpand
The redshift of the gravitational lens of PKS1830–211 determined from molecular absorption lines
GRAVITATIONAL lensing can be used to derive fundamental cosmo-logical parameters, provided that the redshift of the lens and the structure of its potential well are known1. The radio sourceExpand
PHIBSS: Unified Scaling Relations of Gas Depletion Time and Molecular Gas Fractions
This paper provides an update of our previous scaling relations (Genzel et al.2015) between galaxy integrated molecular gas masses, stellar masses and star formation rates, in the framework of theExpand
Star formation efficiency in galaxy interactions and mergers: a statistical study
We investigate the enhancement of star formation efficiency in galaxy interactions and mergers by numerical simulations of several hundred galaxy collisions. All morphological types along the HubbleExpand
A Multi-Transition HCN and HCO+ Study of 12 Nearby Active Galaxies: Active Galactic Nucleus versus Starburst Environments
Recent studies have indicated that the HCN-to-CO(J = 1–0) and HCO+-to-HCN(J = 1–0) ratios are significantly different between galaxies with AGN (active galactic nucleus) and SB (starburst)Expand
The ATLAS3D project – IV. The molecular gas content of early-type galaxies
The definitive version can be found at : http://onlinelibrary.wiley.com/ Copyright Royal Astronomical Society
THE METALLICITY DEPENDENCE OF THE CO → H2 CONVERSION FACTOR IN z ⩾ 1 STAR-FORMING GALAXIES*
We use the first systematic samples of CO millimeter emission in z ? 1 ''main-sequence'' star-forming galaxies to study the metallicity dependence of the conversion factor ?CO, from CO lineExpand
Gas fraction and star formation efficiency at z < 1.0
After new observations of 39 galaxies at z = 0.6-1.0 obtained at the IRAM 30m telescope, we present our full CO line survey covering the redshift range 0.2 < z < 1. Our aim is to determine theExpand
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