The M31 Velocity Vector. II. Radial Orbit toward the Milky Way and Implied Local Group Mass
作者： Roeland P. van der Marel , Puragra Guhathakurta , Mark Fardal , Sangmo Tony Sohn , Rachael L. Beaton
DOI: 10.1088/0004-637X/753/1/8
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摘要: … the velocity vector of M31 with respect to the Milky Way and use this to constrain the mass of the Local … We combine the results with the HST measurements to obtain a final estimate for …
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