A 2MASS All-Sky View of the Sagittarius Dwarf Galaxy: I. Morphology of the Sagittarius Core and Tidal Arms


We present the first all-sky view of the Sagittarius (Sgr) dwarf galaxy mapped by M giant star tracers detected in the complete Two Micron All-Sky Survey (2MASS). Near infrared photometry of Sgr’s prominent M giant population permits an unprecedentedly clear view of the center of Sgr. The main body is fit with a King profile of limiting major axis radius 30… (More)


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