GALEX and the Starburst History in the Local Universe

Details GALEX and the Starburst History in the Local Universe GALEX and the Starburst History in the Local Universe

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20310303s&link_type=abstract

American Astronomical Society Meeting 203, #103.03; Bulletin of the American Astronomical Society, Vol. 35, p.1371

Astronomy and Astrophysics

Astronomy

Scientific paper

Galaxy Evolution Explorer (GALEX) is providing us with UV photometry in two bands for thousands of galaxies. This allows us to construct a large UV-selected sample of galaxies. Many fields surveyed by GALEX overlap with SDSS DR1, thus adding the optical photometry of UV-detected galaxies. We fit UV and optical flux points to a library of model star formation histories, and thus derive the ages of starbursts in the local Universe, and the fraction of mass produced in recent starbursts. We also derive physical parameters of these galaxies such as a M/L ratio, intrinsic attenuation, and metallicity. The results presented are preliminary, based on a small part of the sky that was surveyed so far.
GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in April 2003. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission.

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