The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the survey

  • Laura Ferrarese
  • , Patrick Côté
  • , Jean Charles Cuillandre
  • , S. D.J. Gwyn
  • , Eric W. Peng
  • , Lauren A. MacArthur
  • , Pierre Alain Duc
  • , A. Boselli
  • , Simona Mei
  • , Thomas Erben
  • , Alan W. McConnachie
  • , Patrick R. Durrell
  • , J. Christopher Mihos
  • , Andrés Jordán
  • , Ariane Lançon
  • , Thomas H. Puzia
  • , Eric Emsellem
  • , Michael L. Balogh
  • , John P. Blakeslee
  • , Ludovic Van Waerbeke
  • Raphaël Gavazzi, Bernd Vollmer, J. J. Kavelaars, David Woods, Nicholas M. Ball, S. Boissier, Stéphane Courteau, E. Ferriere, G. Gavazzi, Hendrik Hildebrandt, P. Hudelot, M. Huertas-Company, Chengze Liu, Dean McLaughlin, Y. Mellier, Martha Milkeraitis, David Schade, Chantal Balkowski, Frédéric Bournaud, R. G. Carlberg, S. C. Chapman, Henk Hoekstra, Chien Peng, Marcin Sawicki, Luc Simard, James E. Taylor, R. Brent Tully, Wim Van Driel, Christine D. Wilson, Todd Burdullis, Billy Mahoney, Nadine Manset

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

354 Citas (Scopus)

Resumen

The Next Generation Virgo Cluster Survey (NGVS) is a program that uses the 1 deg 2 MegaCam instrument on the Canada-France-Hawaii Telescope to carry out a comprehensive optical imaging survey of the Virgo cluster, from its core to its virial radius - covering a total area of 104 deg 2 - in the u*griz bandpasses. Thanks to a dedicated data acquisition strategy and processing pipeline, the NGVS reaches a point-source depth of g 25.9 mag (10σ) and a surface brightness limit of μ g 29 mag arcsec -2 (2σ above the mean sky level), thus superseding all previous optical studies of this benchmark galaxy cluster. In this paper, we give an overview of the technical aspects of the survey, such as areal coverage, field placement, choice of filters, limiting magnitudes, observing strategies, data processing and calibration pipelines, survey timeline, and data products. We also describe the primary scientific topics of the NGVS, which include: the galaxy luminosity and mass functions; the color-magnitude relation; galaxy scaling relations; compact stellar systems; galactic nuclei; the extragalactic distance scale; the large-scale environment of the cluster and its relationship to the Local Supercluster; diffuse light and the intracluster medium; galaxy interactions and evolutionary processes; and extragalactic star clusters. In addition, we describe a number of ancillary programs dealing with "foreground" and "background" science topics, including the study of high-inclination trans-Neptunian objects; the structure of the Galactic halo in the direction of the Virgo Overdensity and Sagittarius Stream; the measurement of cosmic shear, galaxy-galaxy, and cluster lensing; and the identification of distant galaxy clusters, and strong-lensing events.

Idioma originalInglés
Número de artículo4
PublicaciónAstrophysical Journal, Supplement Series
Volumen200
N.º1
DOI
EstadoPublicada - may. 2012
Publicado de forma externa

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