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The Herschel Virgo Cluster Survey: I. Luminosity functions

J. Davies, M. Baes, G. J. Bendo, S. Bianchi, D. J. Bomans, A. Boselli, M. Clemens, E. Corbelli, L. Cortese, A. Dariush, I. De Looze, S. Di Serego Alighieri, D. Fadda, J. Fritz, D. A. Garcia-Appadoo, G. Gavazzi, C. Giovanardi, M. Grossi, T. Hughes, L. K. Hunt, A. Jones, S. C. Madden, D. Pierini, M. Pohlen, S. Sabatini, M. W. L. Smith, J. Verstappen, C. Vlahakis, E. M. Xilouris, S. Zibetti

We describe the Herschel Virgo Cluster Survey(HeViCS) and the first data obtained as part of the science demonstration phase(SDP). The data cover a central 4◊4 sq deg region of the cluster. We use SPIRE and PACS photometry data to produce 100, 160, 250, 350 and 500 mum luminosity functions(LFs) for optically bright galaxies that are selected at 500 mum and detected in all bands. We compare these LFs with those previously derived using IRAS, BLAST and Herschel-ATLAS data. The Virgo cluster LFs do not have the large numbers of faint galaxies or examples of very luminous galaxies seen previously in surveys covering less dense environments. Herschel is an ESA space observatory with science instruments provided by European-led Principal Investigator consortia and with important participation from NASA.

dust - extinction - galaxies: evolution - galaxies: clusters: individual: Virgo

Astronomy and Astrophysics
Volume 518, Number of pages L48_1
2010 July

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Instituto de Astrof√≠sica e Ci√™ncias do Espa√ßo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda√ß√£o para a Ci√™ncia e a Tecnologia
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