The PLANET microlensing campaign: Implications for planets around galactic disk and bulge stars
M. Dominik, M. D. Albrow, J. -P. Beaulieu, J. A. R. Caldwell, A. Cassan, C. Coutures, J. Greenhill, K. Hill, P. Fouque, K. Horne, U. G. Jorgensen, S. Kane, D. Kubas, R. Martin, J. Menzies, K. R. Pollard, K. Sahu, J. Wambsganss, R. Watson, A. Williams
Abstract
With round-the-clock monitoring of galactic bulge microlensing events, the PLANET experiment constrains the abundance and can yield the discovery of planets down to the mass of earth around galactic disk and bulge stars. Data taken until 1999 imply that less than 1/3 of bulge M-dwarfs are surrounded by jupiter-mass companions at orbital radii between 1 and 4 AU. The current rate of microlensing alerts allows 15-25 jupiters and 1-3 earths to be probed per year.
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