Mass-metallicity relation of zCOSMOS galaxies at z ≈ 0.7, its dependence on star formation rate, and the existence of massive low-metallicity galaxies

C. Maier (1) , B. L. Ziegler (1) , S. J. Lilly , T. Contini (2) , E. Pérez-Montero , F. Lamareille (2) , M. Bolzonella , E. Le Floc’h (3)

1 University of Vienna [Vienna]
2 IRAP - Institut de recherche en astrophysique et planétologie
3 DAP - Département d'Astrophysique (ex SAP)

Aims. The knowledge of the number and physical nature of low-metallicity massive galaxies is crucial for determining and interpreting the mass-metallicity relation (MZR).Methods. Using VLT-ISAAC near-infrared (NIR) spectroscopy of 39 zCOSMOS 0.5

Mots clés: galaxies: evolution; galaxies: high-redshift; galaxies: star formation

Domaines: Astrophysique [astro-ph]

C. Maier, B. L. Ziegler, S. J. Lilly, T. Contini, E. Pérez-Montero, et al.. Mass-metallicity relation of zCOSMOS galaxies at z ≈ 0.7, its dependence on star formation rate, and the existence of massive low-metallicity galaxies. Astronomy and Astrophysics - A&A, 2015, 577, pp.A14. ⟨10.1051/0004-6361/201425224⟩. ⟨cea-01300564⟩