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Paper: Stellar Metallicity of Star-forming Galaxies at Redshift z∼2
Volume: 380, At the Edge of the Universe: Latest Results from the Deepest Astronomical Surveys
Page: 517
Authors: Halliday, C.; Cimatti, A.
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.
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