Statistics
Scientific paper
Jan 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942403j&link_type=abstract
American Astronomical Society, AAS Meeting #219, #424.03
Statistics
Scientific paper
Starting in 2012, the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) survey will map 300 square degrees of the sky in blind spectroscopic mode using the VIRUS IFU. Over the last 5 Gyr out to z<0.5, HETDEX will enable us to map the evolution of the cosmic star formation rate (SFR) density in different environments, the relation between SFR and stellar mass, and the factors driving star formation, including the contribution of galaxy mergers. Over the 28 square degree area, which will have HETDEX spectra, along with deep optical (DES) and near-infrared (Spitzer) images, at z<0.5 we expect to measure stellar masses down to 109 solar masses, detect over 60,000 [O II] emitters, cross-correlate different tracers of SF, and trace SFR down to 0.5 solar masses per year. This will allow us to overcome numerous limitations of earlier studies, such as small number statistics, the use of SF tracers detected in only the most actively star-forming systems, and the predominant use of photometric redshifts. At higher redshifts 1.9
Ciardullo Robin
Drory Niv
Evans Nick
Finkelstein Ken
Finkelstein Steven
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