| Title | A new galaxy near the Local Group in Draco |
| Authors | Karachentsev, I. D.; Sharina, M. E.; Dolphin, A. E.; Geisler, D.; Grebel, E. K.; Guhathakurta, P.; Hodge, P. W.; Karachentseva, V. E.; Sarajedini, A.; Seitzer, P. |
| Bibcode | 2001A&A...379..407K Search ADS ↗ |
| Abstract | We present HST WFPC2 and ground-based images of the low surface brightness dwarf Irr/Sph galaxy KKR 25 in Draco. Its colour-magnitude diagram shows red giant branch stars with the tip at I= 22fm32 , and the presence of some blue stars. The derived true distance modulus, 26fm35 +/- 0fm14 , corresponds to linear distances of KKR 25 from the Milky Way and from the Local Group centroid of 1.86 and 1.79 Mpc, respectively. The absolute magnitude of the galaxy, M_V = -10.48, its linear diameter (0.54 Kpc) and central surface brightness (Sigma 0,V=24fm0 +/-0fm2 /sq arcsec ) are typical of other dIrr/dSphs in the Local Group. Being situated just beyond the radius of the zero-velocity surface of the Local Group, KKR 25 moves away from the LG centroid at a velocity of VLG = + 72 km s-1. Based on observations made with the NASA/ESA Hubble Space Telescope. The Space Telescope Science Institute is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. Based in part on observations obtained with the 6-m telescope operated by the Russian Academy of Sciences. |
| Objects | 2 Objects Search NED ↙ |
