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Date and Time of the Query: 2019-03-19 T18:02:11 PDT
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For refcode 2006A&A...446..839G:
Retrieve 279 NED objects in this reference.
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Copyright by European Southern Observatory (ESO). Reproduced by permission
2006A&A...446..839G H{alpha} surface photometry of galaxies in nearby clusters V. The survey completion G. Gavazzi, A. Boselli, L. Cortese, I. Arosio, A. Gallazzi, P. Pedotti and L. Carrasco Received 18 July 2005 / Accepted 12 September 2005 We present the H{alpha} imaging observations of 273 late-type galaxies in the nearby rich galaxy clusters Virgo, A 1367, Coma, Cancer, Hercules and in the Great Wall, carried out primarily with the 2.1 m telescope of the San Pedro Martir Observatory (SPM) and with the ESO/3.6 m telescope. We derived the H{alpha}+[NII] fluxes and equivalent widths. The H{alpha} survey reached completion for an optically selected sample of nearby galaxies in and outside rich clusters. Taking advantage of the completeness of the data set, the dependence of H{alpha} properties on the Hubble type was determined for late-type galaxies in the Virgo cluster. Differences in the gaseous content partly account for the large scatter of the H{alpha} EW within each Hubble-type class. We studied the radial distributions of the H{alpha} EW around Coma+A 1367 and the Virgo clusters in two luminosity bins. Luminous galaxies show a decrease in their average H{alpha} EW in the inner ~1 virial radius, while low-luminosity galaxies do not show this trend.
Retrieve 279 NED objects in this reference.
Please click here for ADS abstract

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