WINGS-SPE II: A catalog of stellar ages and star formation histories, stellar masses and dust extinction values for local clusters galaxies^⋆,⋆⋆

¹ INAF-Osservatorio Astronomico di Padova, vicolo dell’Osservatorio 5, 35122 Padova, Italy
e-mail: jacopo.fritz@UGent.be
² Sterrenkundig Observatorium Vakgroep Fysica en Sterrenkunde Universeit Gent, Krijgslaan 281, S9 9000 Gent, Belgium
³ Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
⁴ Departamento de Astrofísica, Universidad de La Laguna, 38205 , La Laguna, Tenerife, Spain
⁵ Dipartimento di Astronomia, vicolo Osservatorio 2, 35122 Padova, Italy
⁶ Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Melbourne, Australia
⁷ Observatories of the Carnegie Institution of Washington, Pasadena, CA 91101, USA
⁸ Copenhagen University Observatory. The Niels Bohr Insitute for Astronomy Physics and Geophysics, Juliane Maries Vej 30, 2100 Copenhagen, Denmark
⁹ Instituto de Astrofísica de Andalucía (C.S.I.C.) Apartado 3004, 18080 Granada, Spain
¹⁰ Specola Vaticana, 00120 Stato Città del Vaticano, Italy

Received: 15 June 2010
Accepted: 10 October 2010

Abstract

Context. The WIde-field Nearby Galaxy clusters Survey (wings) is a project whose primary goal is to study the galaxy populations in clusters in the local universe (z < 0.07) and of the influence of environment on their stellar populations. This survey has provided the astronomical community with a high quality set of photometric and spectroscopic data for 77 and 48 nearby galaxy clusters, respectively.

Aims. In this paper we present the catalog containing the properties of galaxies observed by the wings SPEctroscopic (wings-spe) survey, which were derived using stellar populations synthesis modelling approach. We also check the consistency of our results with other data in the literature.

Methods. Using a spectrophotometric model that reproduces the main features of observed spectra by summing the theoretical spectra of simple stellar populations of different ages, we derive the stellar masses, star formation histories, average age and dust attenuation of galaxies in our sample.

Results.  ~ 5300 spectra were analyzed with spectrophotometric techniques, and this allowed us to derive the star formation history, stellar masses and ages, and extinction for the wings spectroscopic sample that we present in this paper.

Conclusions. The comparison with the total mass values of the same galaxies derived by other authors based on sdss data, confirms the reliability of the adopted methods and data.