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A&A Supplement series, Vol. 127, January II 1998, 269-276

Received March 13; accepted May 9, 1997

An optically directed HI search for new dwarf members of the M 81 group

W.K. Huchtmeiertex2html_wrap920 and E.D. Skillmantex2html_wrap922

Send offprint request: W.K. Huchtmeier

tex2html_wrap924  Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
tex2html_wrap926  University of Minnesota, Astronomy Department, 116 Church St., SE, Minneapolis, MN 55455, U.S.A.


We present a search for neutral hydrogen (HI) emission from optically identified dwarf galaxy candidates in the larger M81 group area. Of 136 candidates, 68 galaxies have been detected (this corresponds to a detection rate of tex2html_wrap_inline906 49%). Most of the detected galaxies are background objects and fail to be classified as dwarfs. Many known dwarfs in the M81 group have been detected, but no new members have been discovered.

keywords: galaxies: irregular -- radio lines: galaxies -- galaxies: M 81 -- galaxies clusters M 81 group

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