Computer Science
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005idm..conf..177j&link_type=abstract
THE IDENTIFICATION OF DARK MATTER. Proceedings of the Fifth International Workshop. Held 6-10 September 2004 in Edinburgh, UK. E
Computer Science
Scientific paper
The nature and the location of the lenses discovered in the microlensing surveys done so far towards the LMC remain unclear. Motivated by these questions we computed the optical depth for the different intervening populations and the number of expected events for self-lensing, using a recently drawn coherent picture of the geometrical structure and dynamics of the LMC disk. The most plausible solution is that the events observed so far are due to lenses belonging to different intervening populations: low mass stars in the LMC, in the thick disk, in the spheroid and some true MACHOs in the halo of the Milky Way and the LMC itself. We report also on recent results of microlensing searches in direction of the M31 galaxy, by using the pixel method. The present analysis still does not allow yet to draw sharp conclusions on the MACHO content of the M31 galaxy.
Calchi Novati Sebastiano
Jetzer Philippe
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