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Reconciling mass functions with the star-forming main sequence via mergers

Steinhardt, Charles L. and Yurk, Dominic and Capak, Peter (2017) Reconciling mass functions with the star-forming main sequence via mergers. Monthly Notices of the Royal Astronomical Society, 468 (1). pp. 849-856. ISSN 0035-8711.

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We combine star formation along the ‘main sequence’, quiescence and clustering and merging to produce an empirical model for the evolution of individual galaxies. Main-sequence star formation alone would significantly steepen the stellar mass function towards low redshift, in sharp conflict with observation. However, a combination of star formation and merging produces a consistent result for correct choice of the merger rate function. As a result, we are motivated to propose a model in which hierarchical merging is disconnected from environmentally independent star formation. This model can be tested via correlation functions and would produce new constraints on clustering and merging.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Steinhardt, Charles L.0000-0003-3780-6801
Capak, Peter0000-0003-3578-6843
Additional Information:© 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Received 08 December 2016; revision received 24 February 2017; accepted 24 February 2017; published 28 February 2017. The authors would like to thank Micaela Bagley, Andrew Benson, Zachary Claytor, Andreas Faisst, Olivier Ilbert, Adam Jermyn, Ian Kuehne, Dan Masters, Daniel McAndrew and Sune Toft for helpful comments. CLS acknowledges support from the ERC Consolidator Grant funding scheme (project ConTExt, grant No. 648179) and from the Carlsberg Foundation. DY was supported by the Victor Neher SURF Fellowship.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
European Research Council (ERC)648179
Carlsberg FoundationUNSPECIFIED
Caltech Summer Undergraduate Research Fellowship (SURF)UNSPECIFIED
Subject Keywords:Galaxies: evolution; Galaxies: star formation
Issue or Number:1
Record Number:CaltechAUTHORS:20170428-100809539
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Official Citation:Charles L. Steinhardt, Dominic Yurk, Peter Capak; Reconciling mass functions with the star-forming main sequence via mergers. Mon Not R Astron Soc 2017; 468 (1): 849-856. doi: 10.1093/mnras/stx506
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:77052
Deposited By: Melissa Ray
Deposited On:28 Apr 2017 18:22
Last Modified:03 Oct 2019 17:52

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