Old White Dwarfs as a Microlensing Population
نویسنده
چکیده
A popular interpretation of recent microlensing studies of the line of sight towards the Large Magellanic Cloud invokes a population of old white dwarf stars in the Galactic halo. Below I review the basic properties of old white dwarf stars and the ongoing efforts to detect this population directly.
منابع مشابه
Microlensing signature of a white dwarf population in the galactic halo
Microlensing and pixel-lensing surveys play a fundamental role in the searches for galactic dark matter and in the study of the galactic structure. Recent observations suggest the presence of a population of old white dwarfs with high proper motion, probably in the galactic halo, with local mass density in the range 1.3×10−4−4.4×10−3 M pc−3, in addition to the standard galactic stellar disk and...
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