Key points are not available for this paper at this time.
Author: Genzel, R. et al.; Genre: Journal Article; Issued: 2015-02; Keywords: galaxies: evolution, galaxies: high-redshift, galaxies: kinematics and dynamics, infrared: galaxies; Title: Combined CO and Dust Scaling Relations of Depletion Time and Molecular Gas Fractions with Cosmic Time, Specific Star-formation Rate, and Stellar Mass
Genzel et al. (Thu,) studied this question.