M31: A Unique laboratory for gravitational microlensing

Nov, 1992
Published in:
  • Astrophys.J.Lett. 399 (1992) L43-L46

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Abstract: (ADS)
Due to the smaller angular size of its stars, its greater mass, and the favorable geometry of its nearly edge-on disk, M31 offers interesting advantages in the search for gravitational microlensing by massive condensed halo objects (MACHOs). These advantages and the techniques which can be used to exploit them are discussed here.
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