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26 April 2024

» arxiv » 0904.1206

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BLAST: A Far-Infrared Measurement of the History of Star Formation
Enzo Pascale ; Peter A. R. Ade ; James J. Bock ; Edward L. Chapin ; Mark J. Devlin ; Simon Dye ; Steve A. Eales ; Matthew Griffin ; Joshua O. Gundersen ; Mark Halpern ; Peter C. Hargrave ; David H. Hughes ; Jeff Klein ; Gaelen Marsden ; Philip Mauskopf ; Lorenzo Moncelsi ; Calvin B. Netterfield ; Luca Olmi ; Guillaume Patanchon ; Marie Rex ; Douglas Scott ; Christopher Semisch ; Nicholas Thomas ; Matthew D. P. Truch ; Carole Tucker ; Gregory S. Tucker ; Marco P. Viero ; Donald V. Wiebe ;
Date:	8 Apr 2009
Abstract:	We use measurements from the Balloon-borne Large Aperture Sub-millimeter Telescope (BLAST) at wavelengths spanning 250 to 500 microns, combined with data from the Spitzer Infrared telescope and ground-based optical surveys in GOODS-S, to determine the average star formation rate of the galaxies that comprise the cosmic infrared background (CIB) radiation from 70 to 500 microns, at redshifts 0 < z < 3. We find that different redshifts are preferentially probed at different wavelengths within this range, with most of the 70 micron background generated at z < ~1 and the 500 micron background generated at z > ~1. The spectral coverage of BLAST and Spitzer in the region of the peak of the background at ~200 microns allows us to directly estimate the mean physical properties (temperature, bolometric luminosity and mass) of the dust in the galaxies responsible for contributing more than 80% of the CIB. By utilizing available redshift information we directly measure the evolution of the far infrared luminosity density and therefore the optically obscured star formation history up to redshift z ~3.
Source:	arXiv, 0904.1206
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