We present a measurement of stellar metallicity for star-forming galaxies at redshifts z˜2. Galaxies were observed as part of the Galaxy Mass Assembly ultradeep Spectroscopic Survey (GMASS) and targetted to have Spitzer IRAC 4.5μm magnitude m(4.5μm) < 23.02 and photometric redshift of zphot>1.4, and as possible progenitors of early-type galaxies in the nearby Universe. Metallicity was measured for 72 coadded galaxy spectra using an index defined by Rix, Pettini and collaborators for theoretical star-forming galaxy spectra.
Stellar Metallicity of Star-forming Galaxies at Redshift z˜2 / Halliday C.; Cimatti A.. - STAMPA. - (2007), pp. 517-519.
Stellar Metallicity of Star-forming Galaxies at Redshift z˜2
CIMATTI, ANDREA
2007
Abstract
We present a measurement of stellar metallicity for star-forming galaxies at redshifts z˜2. Galaxies were observed as part of the Galaxy Mass Assembly ultradeep Spectroscopic Survey (GMASS) and targetted to have Spitzer IRAC 4.5μm magnitude m(4.5μm) < 23.02 and photometric redshift of zphot>1.4, and as possible progenitors of early-type galaxies in the nearby Universe. Metallicity was measured for 72 coadded galaxy spectra using an index defined by Rix, Pettini and collaborators for theoretical star-forming galaxy spectra.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
