YELLOW SUPERGIANTS IN THE ANDROMEDA GALAXY (M31)
نویسندگان
چکیده
منابع مشابه
Yellow Supergiants in the Andromeda Galaxy (M31) 1
The yellow supergiant content of nearby galaxies can provide a critical test of stellar evolution theory, bridging the gap between the hot, massive stars and the cool red supergiants. But, this region of the color-magnitude diagram is dominated by foreground contamination, requiring membership to somehow be determined. Fortunately, the large negative systemic velocity of M31, coupled to its hig...
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In a dynamical model for the origin of the Magellanic Clouds and their large orbital angular momenta around the Galaxy, we consider that a primordial gas-rich Andromeda galaxy collided with our similar Galaxy in an oblique sense some 10 Gyr ago and it left the latter following the Hubble expansion law approximately. A huge gaseous halo was hydrodynamically compressed at their closest approach a...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2009
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/703/1/441