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Date and Time of the Query: 2019-05-26 T06:48:22 PDT
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For refcode 2007ApJ...666..231B:
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2007ApJ...666..231B Stellar Velocity Dispersion of the Leo A Dwarf Galaxy Warren R. Brown, Margaret J. Geller, Scott J. Kenyon, and Michael J. Kurtz Abstract. We measure the first stellar velocity dispersion of the Leo A dwarf galaxy, {sigma}=9.3+/-1.3 km s^-1^. We derive the velocity dispersion from the radial velocities of 10 young B supergiants and two H II regions in the central region of Leo A. We estimate a projected mass of (8+/-2.7)x10^7^ M_sun_ within a radius of 2' and a mass-to-light ratio of at least 20+/-6 M_sun_/L_sun_. These results imply Leo A is at least ~80% dark matter by mass. Key words: Galaxies: Individual: Name: Leo A
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