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The GALEX Ultraviolet Virgo Cluster Survey (GUViCS)

Boselli, A., Boissier, S., Heinis, S., Cortese, Luca ORCID:, Ilbert, O., Hughes, T., Cucciati, O., Davies, Jonathan I, Ferrarese, L., Giovanelli, R., Haynes, M. P., Baes, M., Balkowski, C., Brosch, N., Chapman, S. C., Charmandaris, V., Clemens, M. S., Dariush, Aliakbar, De Looze, I., di Serego Alighieri, S., Duc, P.-A., Durrell, P. R., Emsellem, E., Erben, T., Fritz, J., Garcia-Appadoo, D. A., Gavazzi, G., Grossi, M., Jordán, A., Hess, K. M., Huertas-Company, M., Hunt, L. K., Kent, B. R., Lambas, D. G., Lançon, A., MacArthur, L. A., Madden, S. C., Magrini, L., Mei, S., Momjian, E., Olowin, R. P., Papastergis, E., Smith, Matthew W. ORCID:, Solanes, J. M., Spector, O., Spekkens, K., Taylor, J. E., Valotto, C., van Driel, W., Verstappen, J., Vlahakis, C., Vollmer, B. and Xilouris, E. M. 2011. The GALEX Ultraviolet Virgo Cluster Survey (GUViCS). Astronomy & Astrophysics 528 , A107. 10.1051/0004-6361/201016389

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: galaxies: clusters: individual: Virgo / galaxies: evolution / galaxies: fundamental parameters / ultraviolet: galaxies / galaxies: luminosity function, mass function
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 27/02/2014)
Publisher: EDP Sciences
ISSN: 0004-6361
Date of First Compliant Deposit: 30 March 2016
Last Modified: 24 May 2023 17:29

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