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Dwarf spheroidal galaxies in the M81 group of galaxies
Astronomische Nachrichten, 2009AbstractWe study the properties of the dwarf galaxy population in the nearby interacting M81 group of galaxies. In particular, we are deriving the metallicity distribution functions, the ages and the star formation histories of these dwarf galaxies based on data from the Hubble Space Telescope's Advanced Camera for Surveys and the Sloan Digital Sky ...
Lianou, S., Grebel, E. K., Koch, Andreas
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Planetary Nebulae in the Sagittarius Dwarf Spheroidal Galaxy
2006The Sagittarius dwarf galaxy (Sgr) is a satellite of the Galaxy, located behind the Galactic Bulge. It is the nearest extra-galactic system, at a distance of 25 kpc. Sgr contains three known planetary nebulae (PNe) (two from Zijlstra & Walsh 1996, and one new identification).
Zijlstra, Albert A. +3 more
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, 2004