Gravitational microlensing and dark matter problem in our Galaxy: 10 years later

Details Gravitational microlensing and dark matter problem in our Galaxy: 10 years later Gravitational microlensing and dark matter problem in our Galaxy: 10 years later

2004-03-26

arxiv.org/abs/astro-ph/0403619v1

Astronomy and Astrophysics

Astrophysics

presented as an invited talk at the XI Lomonosov Conference on Elementary Particle Physics (Moscow, August 2003); 10 pages,1 f

Scientific paper

Foundations of standard theory of microlensing are described, namely we consider microlensing stars in Galactic bulge, the Magellanic Clouds or other nearby galaxies. We suppose that gravitational microlenses lie between an Earth observer and these stars. Criteria of an identification of microlensing events are discussed. We also consider such microlensing events which do not satisfy these criteria (non-symmetrical light curves, chromatic effects, polarization effects). We describe results of MACHO collaboration observations towards the Large Magellanic Cloud (LMC) and the Galactic bulge. Results of EROS observations towards the LMC and OGLE observations towards the Galactic bulge are also presented. Future microlensing searches are discussed.

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