Abstract
The observation of microlensing events toward the Large Magellanic Cloud has revealed a new population of objects in our Galaxy, which are dark bodies with masses of the order of 0.1M⊙. The nature of these objects is not yet known, though the most plausible hypothesis is that they are brown dwarfs. Other hypotheses include mirror stars, black holes, and exotic stars consisting of cold dark matter particles. This last hypothesis is attractive from the point of view of modern particle physics. Here, we discuss the possibility of explaining the current observational data in the framework of this hypothesis. We conclude that at least two of seven OGLE events can be explained by this hypothesis.
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Sazhin, M., Yagola, A., Yakubov, A. et al. Microlensing by Non-compact Invisible Bodies. Astrophysics and Space Science 252, 365–368 (1997). https://doi.org/10.1023/A:1000829408607
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DOI: https://doi.org/10.1023/A:1000829408607