TY - JOUR
T1 - Hα imaging of the local volume galaxies I. the NGC 6946 galaxy group
AU - Karachentsev, I. D.
AU - Kajsin, S. S.
AU - Tsvetanov, Z.
AU - Ford, H.
PY - 2005/5
Y1 - 2005/5
N2 - We present new Ha 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] M⊙/L⊙, current star formation activity of [0.2, 5.2] × 10-2 M⊙ yr-1, and timescale to exhaust the current gas supply of [6, 86] Gyr.
AB - We present new Ha 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] M⊙/L⊙, current star formation activity of [0.2, 5.2] × 10-2 M⊙ yr-1, and timescale to exhaust the current gas supply of [6, 86] Gyr.
KW - Galaxies: dwarf
KW - Stars: formation
UR - http://www.scopus.com/inward/record.url?scp=18444418264&partnerID=8YFLogxK
U2 - 10.1051/0004-6361:20052673
DO - 10.1051/0004-6361:20052673
M3 - Article
AN - SCOPUS:18444418264
SN - 0004-6361
VL - 434
SP - 935
EP - 938
JO - Astronomy and Astrophysics
JF - Astronomy and Astrophysics
IS - 3
ER -