The Star Formation Rate Functions at z = 0-1: the Latter Half of the History of Visible and Hidden Star Formation in the Universe

Details The Star Formation Rate Functions at z = 0-1: the Latter Half of the History of Visible and Hidden Star Formation in the Universe The Star Formation Rate Functions at z = 0-1: the Latter Half of the History of Visible and Hidden Star Formation in the Universe

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1240...59t&link_type=abstract

HUNTING FOR THE DARK: THE HIDDEN SIDE OF GALAXY FORMATION. Edited by Victor P. Debattista and Cristina C. Popescu AIP Conferen

Astronomy and Astrophysics

Astronomy

Star Formation, Red Shift, Infrared Sources (Astronomical), Brightness, Star Formation, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Infrared, Luminosity And Mass Functions

Scientific paper

We found that the rapid decline of SFR density from z = 1 to z = 0 is accompanied by a rapid decline of the contribution of infrared (IR) galaxies [1]. Making use of FUV (GALEX) and FIR (IRAS/Spitzer) data, we have established a method to estimate the star-formation luminosity function (LF), that is a LF of galaxy luminosity produced by newly formed stars [1]. In this work, we have calculated the distribution function of SFR of galaxies (SFR function) as a function of redshift at z = 0-1 from UV and FIR selected galaxies in the CDFS. We found that, though the FUV- and FIR-based SFR functions agree until z = 0.7, the FUV-based one becomes significantly lower than FIR based one at z = 1. As for integrated value, this means that the SFR density is at least 40% underestimated, even after adding the contribution from obscured star formation.

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