Halo Microlens Source Systems and their Underlying Stellar Backgrounds

Details Halo Microlens Source Systems and their Underlying Stellar Backgrounds Halo Microlens Source Systems and their Underlying Stellar Backgrounds

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7306c&link_type=abstract

HST Proposal ID #7306

Physics

Hst Proposal Id #7306 Stellar Populations

Scientific paper

The MACHO project has recently analyzed 2 years of LMC data, revealing 8 candidate microlensing events, and suggesting the existence of dark objects in the galactic halo. We propose to obtain medium-deep broadband images of 7 source stars for these events plus one additional star. This will allow us to determine a} which star was actually lensed, b} the amount of crowding in our ground-based frames, c} if the stars are normal in the CMD, and d} if they lie preferentially at the back of the LMC. This provides a clear test for microlensing by halo objects.

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