The prism multi-object survey (Primus). II. Data reduction and redshift fitting

Richard J. Cool, John Moustakas, Michael R. Blanton, Scott M. Burles, Alison L. Coil, Daniel J. Eisenstein, Kenneth C. Wong, Guangtun Zhu, James Aird, Rebecca A. Bernstein, Adam S. Bolton, David W. Hogg, Alexander J. Mendez

    Research output: Contribution to journalArticlepeer-review


    The PRIsm MUlti-object Survey (PRIMUS) is a spectroscopic galaxy redshift survey to z ∼ 1 completed with a low-dispersion prism and slitmasks allowing for simultaneous observations of ∼2500 objects over 0.18 deg2. The final PRIMUS catalog includes ∼130,000 robust redshifts over 9.1 deg2. In this paper, we summarize the PRIMUS observational strategy and present the data reduction details used to measure redshifts, redshift precision, and survey completeness. The survey motivation, observational techniques, fields, target selection, slitmask design, and observations are presented in Coil et al. Comparisons to existing higher-resolution spectroscopic measurements show a typical precision of σ z /(1 + z) = 0.005. PRIMUS, both in area and number of redshifts, is the largest faint galaxy redshift survey completed to date and is allowing for precise measurements of the relationship between active galactic nuclei and their hosts, the effects of environment on galaxy evolution, and the build up of galactic systems over the latter half of cosmic history.

    Original languageEnglish (US)
    Article number118
    JournalAstrophysical Journal
    Issue number2
    StatePublished - Apr 20 2013


    • galaxies: distances and redshifts
    • galaxies: evolution
    • galaxies: high-redshift
    • large-scale structure of universe
    • surveys

    ASJC Scopus subject areas

    • Astronomy and Astrophysics
    • Space and Planetary Science


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