E-viri
Recenzirano
-
Stetson, Peter B; Hesser, James E; Smecker-Hane, Tammy A
Publications of the Astronomical Society of the Pacific, 05/1998, Letnik: 110, Številka: 747Journal Article
We present accurate photometry on the Johnson B, Kron-Cousins R photometric system for approximately 100,000 stars in a field centered on the dwarf spheroidal galaxy in Fornax. We identify numerous probable short-period variable stars, blue stars that appear to be the main sequence of a small population with an age of order 108 yr, and two distinct types of luminous red star: an extended sequence of primarily carbon stars and a clump of mostly M giants slightly more luminous than the giant-branch tip. The spatial distribution of each of these subpopulations within the Fornax dwarf galaxy is considered. (Author)
