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The Luminosity and Metallicity Relation of distant luminous infrared galaxies

Y. C. Liang·F. Hammer·H. Flores·D. Elbaz·D. Marcillac·L. Deng·C. J. Cesarsky
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Abstract

Oxygen abundances [12+log(O/H)] in the interstellar medium of a large sample of distant (z>0.4) luminous infrared galaxies (LIRGs) were estimated from their extinction corrected emission-line ratios, on the basis of the VLT/FORS2 spectra with good S/N and moderate resolution. These LIRGs were selected from ISOCAM deep survey fields (CFRS, UDSR, UDSF). They show oxygen abundances ranging from 8.36 to 8.93, with a median value of 8.67, which is 0.5 lower than that of the local bright disks (i.e., L*) at the given magnitude. A significant fraction of distant large disks are indeed LIRGs. Such massive disks could have formed ~50% of their metals and stellar masses since z~1.

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Y. C. Liang, F. Hammer, H. Flores, D. Elbaz, D. Marcillac, L. Deng, C. J. Cesarsky. 2005-01-25. The Luminosity and Metallicity Relation of distant luminous infrared galaxies. https://arxiv.org/abs/astro-ph/0501529

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