A common mass scale for satellite galaxies of the Milky Way

被引：0
|
作者：
Louis E. Strigari
James S. Bullock
Manoj Kaplinghat
Joshua D. Simon
Marla Geha
Beth Willman
Matthew G. Walker
机构：
[1] Center for Cosmology,Department of Physics and Astronomy
[2] University of California,Department of Astronomy
[3] Irvine,Department of Astronomy
[4] California 92697-4574,undefined
[5] USA,undefined
[6] California Institute of Technology,undefined
[7] 1200 East California Boulevard,undefined
[8] MS105-24,undefined
[9] Pasadena,undefined
[10] California 91125,undefined
[11] USA,undefined
[12] Yale University,undefined
[13] PO Box 208101,undefined
[14] New Haven,undefined
[15] Connecticut 06520-8101,undefined
[16] USA,undefined
[17] Harvard-Smithsonian Center for Astrophysics,undefined
[18] 60 Garden Street,undefined
[19] Cambridge,undefined
[20] Massachusetts 02138,undefined
[21] USA ,undefined
[22] Institute of Astronomy,undefined
[23] University of Cambridge,undefined
[24] Madingley Road,undefined
[25] Cambridge CB3 0HA,undefined
[26] UK ,undefined
来源：
Nature | 2008年 / 454卷
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摘要：
Sophisticated optical astronomy projects such as the Sloan Digital Sky Survey are reaching a new threshold in detecting the least luminous galaxies in the Universe, and now at least twenty-three faint satellite galaxies are known in the region of the Milky Way. They range in luminosity from about a thousand to more than 100 million times that of the Sun. The velocities of the stars in these galaxies reveal that despite this variation in luminosity, each of the galaxies is similar in mass, at about 10 million times the mass of the Sun within their central 300 parsecs. The faintest of the Milky Way satellites are accordingly the most dark-matter-dominated galaxies known in the Universe.
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页码：1096 / 1097
页数：1
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