Quantitative Spectral Diagnostics of Galaxy Evolution to z 0.8

Details Quantitative Spectral Diagnostics of Galaxy Evolution to z 0.8 Quantitative Spectral Diagnostics of Galaxy Evolution to z 0.8

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.4302m&link_type=abstract

American Astronomical Society Meeting 207, #43.02; Bulletin of the American Astronomical Society, Vol. 37, p.1228

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained spatially integrated, optical spectrophotometry for several hundred nearby star-forming galaxies, focusing on the population of nearby starburst galaxies that likely dominate at high redshift. We use these data to develop quantitative spectral diagnostics that measure the star-formation rates and gas-phase chemical abundances of distant galaxies. We apply these diagnostics to a sample of 6,000 galaxies at 0 < z < 0.8 from the AGN and Galaxy Evolution Survey to measure the evolution in the luminosity- and mass-metallicity relations of star-forming galaxies. We quantify the chemical enrichment of galaxies at fixed blue luminosity and stellar mass as a function of redshift, and compare our results with simple chemical evolution models and N-body hydrodynamic simulations of galaxy formation.

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