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A Virgo Environmental Survey Tracing Ionised Gas Emission (Vestige): I. Introduction To The Survey, A. Boselli, M. Fossati, L. Ferrarese, S. Boissier, G. Consolandi, A. Longobardi, P. Amram, M. Balogh, P. Barmby, M. Boquien, F. Boulanger, J. Braine, V. Buat, D. Burgarella, F. Combes, T. Contini, L. Cortese, P. Côté, S. Côté, J. C. Cuillandre, L. Drissen, B. Epinat, M. Fumagalli, S. Gallagher, G. Gavazzi, J. Gomez-Lopez, S. Gwyn, W. Harris, G. Hensler
A Virgo Environmental Survey Tracing Ionised Gas Emission (Vestige): I. Introduction To The Survey, A. Boselli, M. Fossati, L. Ferrarese, S. Boissier, G. Consolandi, A. Longobardi, P. Amram, M. Balogh, P. Barmby, M. Boquien, F. Boulanger, J. Braine, V. Buat, D. Burgarella, F. Combes, T. Contini, L. Cortese, P. Côté, S. Côté, J. C. Cuillandre, L. Drissen, B. Epinat, M. Fumagalli, S. Gallagher, G. Gavazzi, J. Gomez-Lopez, S. Gwyn, W. Harris, G. Hensler
Physics and Astronomy Publications
The Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) is a blind narrow-band (NB) Hα+[NII] imaging survey carried out with MegaCam at the Canada-France-Hawaii Telescope. The survey covers the whole Virgo cluster region from its core to one virial radius (104 deg2). The sensitivity of the survey is of f(Hα) ∼ 4 × 10-17 erg s-1 cm-2 (5σ detection limit) for point sources and Σ(Hα) ∼ 2 × 10-18 erg s-1 cm-2 arcsec-2 (1σ detection limit at 3 arcsec resolution) for extended sources, making VESTIGE the deepest and largest blind NB survey of a nearby cluster. This paper presents the …