A Multi-wavelength Look At Dust Evolution At z 0.16, 0.24 And 0.32

Details A Multi-wavelength Look At Dust Evolution At z 0.16, 0.24 And 0.32 A Multi-wavelength Look At Dust Evolution At z 0.16, 0.24 And 0.32

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342404m&link_type=abstract

American Astronomical Society, AAS Meeting #213, #424.04; Bulletin of the American Astronomical Society, Vol. 41, p.246

Astronomy and Astrophysics

Astronomy

Scientific paper

We report results from the Wyoming Survey for Hα (WySH), a comprehensive four-square degree survey to probe the evolution of star-forming galaxies over the latter half of the age of the Universe. We have supplemented the Hα data from WySH with infrared data from the Spitzer Wide-area Infrared Extragalactic Survey (SWIRE) and ultraviolet data from the Galaxy Evolution Explorer (GALEX) Deep Imaging Survey. This dataset provides a multi-wavelength look at the evolution of dust extinction, and here we compare a traditional measure of dust extinction (TIR/FUV) to a more recent diagnostic, [L(Hα) + 0.031L(24μm)]/L(Hα), which is based on a new robust star formation rate (SFR) indicator, SFR[Hα+24μm]. With such data over multiple epochs, the evolution in dust extinction with redshift can be assessed. We present preliminary results from the ELAIS-N1 and Lockman Hole regions at z 0.16, 0.24, and 0.32.
This research has been funded by the National Science Foundation and the Wyoming Space Grant Consortium.

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