EDP Sciences
Free access
Volume 386, Number 1, April IV 2002
Page(s) 114 - 123
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20020214

A&A 386, 114-123 (2002)
DOI: 10.1051/0004-6361:20020214

H $\alpha$ surface photometry of galaxies in the Virgo cluster I. Observations with the San Pedro Martir 2.1 m telescope

G. Gavazzi1, A. Boselli2, P. Pedotti1, A. Gallazzi1 and L. Carrasco3, 4

1  Università degli Studi di Milano-Bicocca, Piazza delle scienze 3, 20126 Milano, Italy
2  Laboratoire d'Astronomie Spatiale, Traverse du Siphon, 13376 Marseille Cedex 12, France
    e-mail: Alessandro.Boselli@astrsp-mrs.fr
3  Instituto Nacional de Astrofísica, Optica y Electrónica, Apartado Postal 51. C.P. 72000 Puebla, Pue., México
    e-mail: carrasco@transun.inaoep.mx
4  Observatorio Astronómico Nacional, UNAM, Apartado Postal 877, C.P. 22860, Ensenada B.C., México

(Received 3 December 2001 / Accepted 5 February 2002)

H $\alpha$ imaging observations of 125 galaxies obtained with the 2.1 m telescope of the San Pedro Martir Observatory (SPM) (Baja California, Mexico) are presented. The observed galaxies are mostly Virgo cluster members (77), with 36 objects in the Coma/A1367 supercluster and 12 in the clusters A2197 and A2199 taken as fillers. H $\alpha$+[NII] fluxes and equivalent widths, as well as images of the detected targets are presented.

Key words: galaxies: photometry -- galaxies: clusters: individual: Virgo

Offprint request: G. Gavazzi, giuseppe.gavazzi@mib.infn.it

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© ESO 2002