Extreme emission-line galaxies out to z similar to 1 in zCOSMOS I. Sample and characterization of global properties
- Amorin, R.
- Perez-Montero, F.
- Contini, T.
- Vilchez, J. M.
- Bolzonella, M.
- Tasca, L. A. M.
- Lamareille, F.
- Zamorani, G.
- Maier, C.
- Carollo, C. M.
- Kneib, J. -P.
- Le Fevre, O.
- Lilly, S.
- Mainieri, V.
- Renzinis, A.
- Scodeggio, M.
- Bardelli, S.
- Bongiorno, A.
- Caputi, K.
- Cucciati, O.
- de la Torre, S.
- de Ravel, L.
- Franzetti, P.
- Garilli, B.
- Iovino, A.
- Kampczyk, P.
- Knobel, C.
- Kovac, K.
- Le Borgne, J. -F.
- Le Brun, V.
- Mignoli, M.
- Pello, R.
- Peng, Y.
- Presotto, V.
- Ricciardelli, E.
- Silverman, J. D.
- Tanaka, M.
- Tresse, L.
- Vergani, D.
- Zucca, E.
DOIAbstract
Context. The study of large and representative samples of low-metallicity star-forming galaxies at different cosmic epochs is of great interest to the detailed understanding of the assembly history and evolution of low-mass galaxies.Aims. We present a thorough characterization of a large sample of 183 extreme emission-line galaxies (EELGs) at redshift 0.11Methods. We use multiwavelength COSMOS photometry, HST-ACS I-band imaging, and optical zCOSMOS spectroscopy to derive the main global properties of star-forming EELGs, such as sizes, stellar masses, star formation rates (SFR), and reliable oxygen abundances using both "direct" and "strong-line" methods.Results. The EELGs are extremely compact (r(50) similar to 1.3 kpc), low-mass (M-* simil...
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