Microlensing as a probe of the Galactic structure; 20 years of microlensing optical depth studies

Details Microlensing as a probe of the Galactic structure; 20 years of microlensing optical depth studies Microlensing as a probe of the Galactic structure; 20 years of microlensing optical depth studies

2010-01-15

arxiv.org/abs/1001.2707v2

General Relativity and Gravitation 42, 9 (2010) 2047-2074

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Accepted for publication in General Relativity and Gravitation. General Relativity and Gravitation in press (2010) 00

Scientific paper

10.1007/s10714-009-0925-4

Microlensing is now a very popular observational astronomical technique. The investigations accessible through this effect range from the dark matter problem to the search for extra-solar planets. In this review, the techniques to search for microlensing effects and to determine optical depths through the monitoring of large samples of stars will be described. The consequences of the published results on the knowledge of the Milky-Way structure and its dark matter component will be discussed. The difficulties and limitations of the ongoing programs and the perspectives of the microlensing optical depth technique as a probe of the Galaxy structure will also be detailed.

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