The metallicity properties of zCOSMOS galaxies at 0.2 < z < 0.8

被引：77

作者：

Cresci, G. ^{[1
]}

Mannucci, F. ^{[1
]}

Sommariva, V. ^{[1
]}

Maiolino, R. ^{[2
]}

Marconi, A. ^{[3
]}

Brusa, M. ^{[4
]}

机构：

[1] Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy

[2] Osserv Astron Roma, INAF, I-00040 Monte Porzio Catone, Italy

[3] Univ Florence, Dipartimento Fis & Astron, I-50125 Florence, Italy

[4] Max Planck Inst Extraterr Phys, D-85741 Garching, Germany

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2012年 / 421卷 / 01期

关键词：

galaxies: abundances; galaxies: formation; galaxies: high-redshift; STAR-FORMING GALAXIES; DIGITAL SKY SURVEY; VLT DEEP SURVEY; ACTIVE GALACTIC NUCLEI; MASS-METALLICITY; HIGH-REDSHIFT; COSMOS FIELD; PHOTOMETRIC REDSHIFTS; POPULATION SYNTHESIS; PHYSICAL CONDITIONS;

D O I：

10.1111/j.1365-2966.2011.20299.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the metallicity properties of galaxies in the zCOSMOS sample in the range 0.2 < z < 0.8. At z < 0.46, where Ha and [N II] are detected, we find the same dependence of metallicity on stellar mass and star formation rate, the fundamental metallicity relation (FMR), found by Mannucci et al. in Sloan Digital Sky Survey galaxies on a similar redshift range. We extend this relation to higher redshift, 0.49 < z < 0.8, where the R-23 metallicity index can be measured in our data, finding no evidence for evolution, and a metallicity scatter around the relation of about 0.16 dex. This result confirms, with a much higher level of significance with respect to previous works, the absence of evolution of the FMR during the last-half of cosmic history.

引用

页码：262 / 269

页数：8

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The metallicity properties of zCOSMOS galaxies at 0.2 &lt; z &lt; 0.8

The metallicity properties of zCOSMOS galaxies at 0.2 < z < 0.8