Mass Functions, Luminosity Functions, and Completeness Measurements from Clustering Redshifts

Bates, Dominic and Tojeiro, Rita and Newman, Jeffrey A. and Gonzalez-Perez, Violeta and Comparat, Johan and Schneider, Donald P. and Lima, Marcos and Streblyanska, Alina (2019) Mass Functions, Luminosity Functions, and Completeness Measurements from Clustering Redshifts. Monthly Notices of the Royal Astronomical Society, 486 (3). 3059–3077. ISSN 0035-8711

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Abstract

This paper presents stellar mass functions and i-band luminosity functions for Sloan Digital Sky Survey (SDSS) galaxies at $i <21$ using clustering redshifts, from which we also compute targeting completeness measurements for the Baryon Oscillation Spectroscopic Survey (BOSS). Clustering redshifts is a method of obtaining the redshift distribution of a sample of galaxies with only photometric information by measuring the angular crosscorrelation with a spectroscopic sample in different redshift bins. We construct a spectroscopic sample containing data from the BOSS + eBOSS surveys, allowing us to recover redshift distributions from photometric data out to $z\simeq 2.5$. We produce k-corrected i-band luminosity functions and stellar mass functions by applying clustering redshifts to SDSS DR8 galaxies in small bins of colour and magnitude. There is little evolution in the mass function between $0.2 <z <0.8$, implying the most massive galaxies form most of their mass before $z = 0.8$. These mass functions are used to produce stellar mass completeness estimates for the Baryon Oscillation Spectroscopic Survey (BOSS), giving a stellar mass completeness of $80\%$ above $M_{\star} > 10^{11.4}$ between $0.2 <z <0.7$, with completeness falling significantly at redshifts higher than 0.7, and at lower masses. Large photometric datasets will be available in the near future (DECaLS, DES, Euclid), so this, and similar techniques will become increasingly useful in order to fully utilise this data.

Item Type: Journal Article
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Additional Information: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Dominic J Bates, Rita Tojeiro, Jeffrey A Newman, Violeta Gonzalez-Perez, Johan Comparat, Donald P Schneider, Marcos Lima, Alina Streblyanska, Mass functions, luminosity functions, and completeness measurements from clustering redshifts, Monthly Notices of the Royal Astronomical Society, Volume 486, Issue 3, July 2019, Pages 3059–3077 is available online at: https://academic.oup.com/mnras/article/486/3/3059/5479250
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code: 132951
Deposited By: ep_importer_pure
Deposited On: 18 Apr 2019 13:25
Refereed?: Yes
Published?: Published
Last Modified: 24 Feb 2020 03:52
URI: https://eprints.lancs.ac.uk/id/eprint/132951

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