1999/05/24 by Nelson Caldwell · 5 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1086/301020
To appear in AJ
arxiv created 1999/05/24 · openalex publication_date 1999/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31
CCD images of three newly discovered dwarf spheroidal companions to M31, Andromeda V, VI, and VII, are used to extract surface brightness profiles and total magnitudes. Using distance moduli provided by Armandroff et al. and Grebel & Guhathakurta, these galaxies are shown to have similar luminosities to other Local Group dwarf spheroidals; And V in particular is similar to Draco and Ursa Minor in luminosity, i.e., among the faintest known. In the luminosity-metallicity relation, And V is shown to have a significantly higher metallicity than expected.