Paper:	Microlensing Search for Extrasolar Planets
Volume:	366, Transiting Extrasolar Planets Workshop
Page:	337
Authors:	Cassan, A.; Kubas, D.
Abstract:	Microlensing has recently proven to be a valuable tool to search for extrasolar planets of Neptune- to super-Earth-mass planets at orbits of few AU. Since planetary signals are of very short duration, an intense and continuous monitoring is required, which is achieved PLANET : “Probing Lensing Anomalies NETwork”. Up to now the detection number amounts to four, one of them being OGLE 2005-BLG-390Lb, an extrasolar planet of only ~ 5.5MEarth orbiting its M-dwarf host star at ~ 2.6 AU. For non-planetary microlensing events observed from 1995 to 2006, we compute detection efficiency diagrams which can then be used to derive an estimate of the limit on the Galactic abundance of sub-Jupiter-mass planets, as well as relative abundance of Neptune-like planets.

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