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. © 2012. The American Astronomical Society. All rights reserved..

Ferrarese, L., Côté, P., Cuillandre, J., Gwyn, S., Peng, E., Macarthur, L., et al. (2012). The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the Survey. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 200, 4-4 [10.1088/0067-0049/200/1/4].

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

GAVAZZI, GIUSEPPE;
2012

Abstract

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. © 2012. The American Astronomical Society. All rights reserved..
Articolo in rivista - Articolo scientifico
galaxies: clusters: individual: Virgo, galaxies: distances and redshifts, galaxies: general, galaxies: luminosity function, mass function, galaxies: photometry, galaxies: star clusters: general
English
2012
200
4
4
none
Ferrarese, L., Côté, P., Cuillandre, J., Gwyn, S., Peng, E., Macarthur, L., et al. (2012). The Next Generation Virgo Cluster Survey (NGVS). I. Introduction to the Survey. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 200, 4-4 [10.1088/0067-0049/200/1/4].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/48738
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