1998/11/18 by U. Hopp, Ulrich Hopp, R. E. Schulte‐Ladbeck +9
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9811281
4 pages, 5 figures. Astronomy & Astrophysics (Letters) submitted
arxiv created 1998/11/18 · openalex publication_date 1998/11/18 · arxiv updated 2009/12/01 · openalex created_date 2022/09/30 · openalex updated_date 2026/07/28
We present medium deep CCD imaging in B, V, and I of the Pegasus Dwarf galaxy\n(And VI) which was recently found by Karachentsev & Karachentseva (1998), and\nindependently also by Armandroff et al. (1999). The Calar Alto 2.2m images show\na low surface brightness galaxy. Its structure resembles that of the other\nknown dSph companions of M31 And I, II, III, and V. The brightest stars are\nresolved in all three colors. Color-magnitude diagrams in either B-V or V-I\nshow the tip of the red giant branch which allows us to estimate a true\ndistance modulus of 24.5 \± 0.2. The color-magnitude diagrams and the\nstructure show no evidence for recent star formation, thus, a classification as\nspheroidal dwarf galaxy with a rather old population seems appropriate. The\ntotal absolute magnitude of this dwarf is MV,0 = -10.4\±0.2.\n