1. The GALEX Ultraviolet Virgo Cluster Survey (GUViCS). I: The UV luminosity function of the central 12 sq.deg
- Author
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Laura Ferrarese, Emmanuel Momjian, Leslie K. Hunt, Eric Emsellem, J. I. Davies, Catherine Vlahakis, José M. Solanes, Noah Brosch, Matthew Smith, Jacopo Fritz, Andrés Jordán, Kelley M. Hess, James E. Taylor, W. van Driel, I. De Looze, Marco Grossi, Samuel Boissier, Patrick R. Durrell, Maarten Baes, Alessandro Boselli, S. di Serego Alighieri, Thomas Erben, Simona Mei, Sebastien Heinis, Pierre-Alain Duc, Thomas M. Hughes, Emmanuel M. Xilouris, O. Spector, Brian R. Kent, D. A. Garcia-Appadoo, Emmanouil Papastergis, Giuseppe Gavazzi, C. Balkowski, Bernd Vollmer, Kristine Spekkens, O. Ilbert, Laura Magrini, Lauren A. MacArthur, Riccardo Giovanelli, O. Cucciati, Suzanne C. Madden, Ariane Lançon, Marcel Clemens, C. Valotto, Vassilis Charmandaris, Luca Cortese, Marc Huertas-Company, Martha P. Haynes, Joris Verstappen, Scott Chapman, Aliakbar Dariush, Diego G. Lambas, Ronald P. Olowin, Astronomy, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), A. Boselli, S. Boissier, S. Heini, L. Cortese, O. Ilbert, T. Hughe, O. Cucciati, J. Davie, L. Ferrarese, R. Giovanelli, M. P. Hayne, M. Bae, C. Balkowski, N. Brosch, S. C. Chapman, V. Charmandari, M. S. Clemen, A. Dariush, I. De Looze, S. di Serego Alighieri, P.-A. Duc, P. R. Durrell, E. Emsellem, T. Erben, J. Fritz, D. A. Garcia-Appadoo, G. Gavazzi, M. Grossi, A. Jordán, K. M. He, M. Huertas-Company, L. K. Hunt, B. R. Kent, D. G. Lamba, A. Lançon, L. A. MacArthur, S. C. Madden, L. magrini, S. Mei, E. Momjian, R. P. Olowin, E. Papastergi, M. W. L. Smith, J. M. Solane, O. Spector, K. Spekken, J. E. Taylor, C. Valotto, W. van Driel, J. Verstappen, C. Vlahaki, B. Vollmer, and E. M. Xilouris
- Subjects
HI SOURCE CATALOG ,Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,COMA CLUSTER ,FAST ALPHA SURVEY ,DATA RELEASE ,NEARBY CLUSTERS ,FOS: Physical sciences ,DWARF ELLIPTIC GALAXIES ,Astrophysics ,medicine.disease_cause ,01 natural sciences ,Luminosity ,STAR-FORMATION ,0103 physical sciences ,Galaxy formation and evolution ,medicine ,Cluster (physics) ,fundamental parameters [galaxies] ,EARLY-TYPE GALAXIES ,010303 astronomy & astrophysics ,galaxies: fundamental parameter ,evolution [galaxies] ,Luminosity function (astronomy) ,luminosity function [galaxies] ,Physics ,[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,010308 nuclear & particles physics ,Star formation ,Astronomy and Astrophysics ,galaxies: fundamental parameters ,clusters: individual: Virgo [galaxies] ,BAND SURFACE PHOTOMETRY ,Virgo Cluster ,Galaxy ,galaxies: luminosity function ,Physics and Astronomy ,Space and Planetary Science ,mass function ,galaxies: luminosity function, mass function ,galaxies: clusters: individual: Virgo ,ultraviolet: galaxies ,astro-ph.CO ,ultraviolet: galaxie ,DIGITAL SKY SURVEY ,galaxies [ultraviolet] ,galaxies: evolution ,Ultraviolet ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
The GALEX Ultraviolet Virgo Cluster Survey (GUViCS) is a complete blind survey of the Virgo cluster covering about 40 sq. deg. in the far UV (FUV, lambda_eff=1539A, Delta-lambda=442A) and about 120 sq. deg. in the near UV (NUV, lambda_eff=2316A, Delta-lambda=1060A). The goal of the survey is to study the ultraviolet (UV) properties of galaxies in a rich cluster environment, spanning a wide luminosity range from giants to dwarfs, and regardless of prior knowledge of their star formation activity. The UV data will be combined with those in other bands (optical: NGVS; far-infrared - submm: HeViCS; HI: ALFALFA) and with our multizone chemo-spectrophotometric models of galaxy evolution to make a complete and exhaustive study of the effects of the environment on the evolution of galaxies in high density regions. We present here the scientific objectives of the survey, describing the observing strategy and briefly discussing different data reduction techniques. Using UV data already in-hand for the central 12 sq. deg. we determine the FUV and NUV luminosity functions of the Virgo cluster core for all cluster members and separately for early- and late-type galaxies and compare it to the one obtained in the field and other nearby clusters (Coma, A1367). This analysis shows that the FUV and NUV luminosity functions of the core of the Virgo clusters are flatter (alpha about -1.1) than those determined in Coma and A1367. We discuss the possible origin of this difference, 18 pages, 14 figures, accepted in A&A, high resolution version of figure 1 and 2 and other information available at http://galex.oamp.fr/guvics/observations.html
- Published
- 2011