The GALEX ultraviolet virgo cluster survey (GUViCS): I. the UV luminosity function of the central 12 sq. deg

A. Boselli, S. Boissier, S. Heinis, L. Cortese, O. Ilbert, T. Hughes, O. Cucciati, J. Davies, L. Ferrarese, R. Giovanelli, M. P. Haynes, M. Baes, C. Balkowski, N. Brosch, S. C. Chapman, V. Charmandaris, M. S. Clemens, A. Dariush, I. De Looze, S. Di Serego AlighieriP. A. Duc, P. R. Durrell, E. Emsellem, T. Erben, J. Fritz, D. A. Garcia-Appadoo, G. Gavazzi, M. Grossi, A. Jordán, K. M. Hess, M. Huertas-Company, L. K. Hunt, B. R. Kent, D. G. Lambas, A. Lançon, L. A. MacArthur, S. C. Madden, L. Magrini, S. Mei, E. Momjian, R. P. Olowin, E. Papastergis, M. W.L. Smith, J. M. Solanes, O. Spector, K. Spekkens, J. E. Taylor, C. Valotto, W. Van Driel, J. Verstappen, C. Vlahakis, B. Vollmer, E. M. Xilouris

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

83 Citas (Scopus)

Resumen

The GALEX Ultraviolet Virgo Cluster Survey (GUViCS) is a complete blind survey of the Virgo cluster covering ∼40 sq. deg in the far UV (FUV, λeff = 1539 Å Δλ = 442 Å) and ∼120 sq. deg in the near UV (NUV, λeff = 2316 Å, Δλ = 1060 Å). 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 (α ∼ -1.1) than those determined in Coma and A1367. We discuss the possible origin of this difference.

Idioma originalInglés
Número de artículoA107
PublicaciónAstronomy and Astrophysics
Volumen528
DOI
EstadoPublicada - 2011
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'The GALEX ultraviolet virgo cluster survey (GUViCS): I. the UV luminosity function of the central 12 sq. deg'. En conjunto forman una huella única.

Citar esto