Astron. Astrophys. Suppl. Ser. 144, 463-468

HI observations of galaxies in the Virgo and Coma clusters

W. van Driel¹ - D. Ragaigne^1,2 - A. Boselli³ - J. Donas³ - G. Gavazzi⁴

Send offprint request: W. van Driel,
e-mail: Wim.vanDriel@obspm.fr

1 - Unité Scientifique Nançay, USR CNRS B704, Observatoire de Paris, 5 place Jules Janssen, F-92195 Meudon, France
2 - DAEC, UMR CNRS 8631, Observatoire de Meudon, 5 place Jules Janssen, F-92195 Meudon, France
3 - Laboratoire d'Astronomie Spatiale, BP. 8, Traverse du Siphon, F-13376 Marseille Cedex 12, France
4 - Universita degli Studi di Milano, Dipartimento di Fisica, Sezione Astrofisica, Via Celoria 16, I-20133 Milano, Italy

Received February 4; accepted March 31, 2000

Abstract:

A total of 44 galaxies in the direction of the Virgo and Coma/Abell 1367 Clusters have been observed in the H I line at Nançay, 17 of which were clearly detected. These observations were obtained in order to complete the H I database for a large, optically selected, sample of galaxies in these two regions. Surveys in these regions at other wavelengths (UV, visible, near-, mid- and far-infrared, radio continuum) have been recently completed or are still underway.

Key words: galaxies: distances and redshifts -- galaxies: general -- galaxies: ISM -- radio lines: galaxies