Volume 434, Number 3, May II 2005
|Page(s)||935 - 938|
|Published online||18 April 2005|
Hα imaging of the local volume galaxies
I. The NGC 6946 galaxy group
Special Astrophysical Observatory, Russian Academy of Sciences, N.Arkhyz, KChR, 369167, Russia e-mail: email@example.com
2 Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
Accepted: 11 February 2005
We present new Hα imaging of all known dwarf irregular companions to NGC 6946: UGC 11583, KK 251, KK 252, KKR 55, KKR 56, Cepheus 1, KKR 59, and KKR 60. The galaxies span a range of blue absolute magnitudes of [ -13.6, -17.6] , relative gas content of [0.1, 2.5] , current star formation activity of yr-1, and timescale to exhaust the current gas supply of [6, 86] Gyr.
Key words: galaxies: dwarf / stars: formation
© ESO, 2005
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