Microlensing search for planets [review article]

Details Microlensing search for planets [review article] Microlensing search for planets [review article]

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005newar..49..424g&link_type=abstract

New Astronomy Reviews, v. 49, iss. 7-9 [SPECIAL ISSUE], p. 424-429.

Astronomy and Astrophysics

Astronomy

3

Scientific paper

Using gravitational microlensing, a space-based wide-field imager could carry out a search for planets with greater sensitivity than any other technique. Because the amplitude of the microlensing signature is independent of planet mass, the survey would extend down to Mars-mass planets, at least a decade below other techniques. While most sensitive to planets in the so-called “lensing zone” (roughly 1 5 AU from star), the microlensing technique probes planets over a broad range of separations, and is the only method that is sensitive to free-floating planets. It is also the only technique capable of conducting a planetary census at a wide range of Galactocentric distances.

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