Gravitational microlensing of double and multiple stars

Details Gravitational microlensing of double and multiple stars Gravitational microlensing of double and multiple stars

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994astl...20..523s&link_type=abstract

Astronomy Letters, Volume 20, Issue 5, September 1994, pp.523-528; Pis'ma v Astronomicheskii Zhurnal, Vol. 20, p. 613

Astronomy and Astrophysics

Astronomy

8

Scientific paper

Recent observations of the effect of microlensing in stars of the Large Magellanic Cloud have led to the discovery of a new population in our galaxy - dark bodies with masses ~0.1 M_sun_. As a consequence, astronomers have gained a unique opportunity to use gravitational microlensing as an efficient extraterrestrial telescope with extremely high angular resolution. The application of this effect to observations of close double stars is discussed. It is of particular interest to apply microlensing to a search for planetary systems around ordinary stars. Planets and stars move about a common center of mass, so the apparent motion of a star is nonuniform, and the light curve is asymmetric. Estimates show that noticeable changes in the light curve should be expected for planets with Jupiter's mass orbiting a star with solar mass.

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