CaltechAUTHORS
Published July 20, 2022 | Version Published + Accepted Version
Journal Article Open

Implications of a Temperature-dependent Initial Mass Function. III. Mass Growth and Quiescence

Creators

  • 1. ROR icon University of Copenhagen
  • 2. ROR icon California Institute of Technology
  • 3. ROR icon University of California, Riverside

Abstract

The stellar initial mass function (IMF) is predicted to depend upon the temperature of gas in star-forming molecular clouds. The introduction of an additional parameter, T_(IMF), into photometric template fitting suggests most galaxies obey an IMF top heavier than the Galactic IMF. The implications of the revised fit on mass function, quiescence, and turnoff are discussed. At all redshifts, the highest-mass galaxies become quiescent first with the turnoff mass decreasing toward the present. The synchronous turnoff mass across galaxies suggests quiescence is driven by universal mechanisms rather than by stochastic or environmental processes.

Additional Information

© 2022. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2021 September 21; revised 2022 April 25; accepted 2022 June 2; published 2022 July 21. The authors would like to thank Vasily Kokorev and Darach Watson for useful discussions. C.L.S. is supported by ERC grant 648179 "ConTExt". B.M. is supported by the Tombrello Fellowship. A.L. is supported by the Selove Prize. The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant No. 140. The Flatiron Institute is supported by the Simons Foundation.

Attached Files

Published - Steinhardt_2022_ApJ_934_22.pdf

Accepted Version - 2206.01750.pdf

Files

2206.01750.pdf

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Additional details

Additional titles

Alternative title
Implications of a Temperature Dependent IMF III: Mass Growth and Quiescence

Identifiers

Eprint ID
115859
Resolver ID
CaltechAUTHORS:20220726-997869000

Related works

Describes
https://arxiv.org/abs/2206.01750 (URL)

Funding

European Research Council (ERC)
648179
Caltech Thomas A. Tombrello Fellowship
Danish National Research Foundation
140
Simons Foundation

Dates

Created
2022-07-27
Created from EPrint's datestamp field
Updated
2022-07-27
Created from EPrint's last_modified field