Microlensing of Unresolved Stars as a Brown Dwarf Detection Method

Details Microlensing of Unresolved Stars as a Brown Dwarf Detection Method Microlensing of Unresolved Stars as a Brown Dwarf Detection Method

1993-12-05

arxiv.org/abs/astro-ph/9312009v1

Astronomy and Astrophysics

Astrophysics

8 pages and 4 figures available by fax Latex 1

Scientific paper

We describe a project of brown dwarf detection in the dark halo of a galaxy using the microlensing effect. We argue that monitoring pixels instead of stars could provide an enhancement in the number of detectable events. We estimate the detection efficiency with a Monte-Carlo simulation. We expect a ten-fold increase with respect to current experiments. To assess the feasibility of this method we have determined the photometric precision of a pixel by comparing several pictures of a same field in the LMC. To be published in the Proceeding of the workshop 'The dark side of the universe...', Roma, Juin 1993,

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