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26 April 2024

» arxiv » astro-ph/0411307

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The Star Formation Rate Function of the Local Universe
D. Christopher Martin ; Mark Seibert ; Veronique Buat ; Jorge Inglesias-Paramo ; Tom A. Barlow ; Luciana Bianchi ; Yong-Ik Byun ; Jose Donas ; Karl Forster ; Peter G. Friedman ; Timothy M. Heckman ; Patrick N. Jelinsky ; Young-Wook Lee ; Barry F. Madore ; Roger F. Malina ; Bruno Milliard ; Patrick F. Morrissey ; Susan G. Neff ; R. Michael Rich ; David Schiminovich ; Oswald H. W. Siegmund ; Todd Small ; Alex S. Szalay ; Barry Y. Welsh ; Ted K. Wyder ;
Date:	11 Nov 2004
Journal:	Astrophys.J. 619 (2005) L59-L62
Subject:	astro-ph
Abstract:	We have derived the bivariate luminosity function for the far ultraviolet (1530Angstroms) and far infrared (60 microns). We used matched GALEX and IRAS data, and redshifts from NED and PSC-z. We have derived a total star formation luminosity function phi(L_{tot}), with L_{tot} = L_{FUV}+L_{FIR}. Using these, we determined the cosmic ``star formation rate’’ function and density for the local universe. The total SFR function is fit very well by a log-normal distribution over five decades of luminosity. We find that the bivariate luminosity function phi(L_{FUV},L_{FIR}) shows a bimodal behavior, with L_{FIR} tracking L_{FUV} for L_{TOT}< 10^10 L_sun, and L_{FUV} saturating at 10^10 L_sun, while L_{TOT} L_{FIR} for higher luminosities. We also calculate the SFR density and compare it to other measurements.
Source:	arXiv, astro-ph/0411307
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