OGLE-2005-BLG-390Lb - Gravity Reveals First Cool Rocky/icy Exoplanet

Details OGLE-2005-BLG-390Lb - Gravity Reveals First Cool Rocky/icy Exoplanet OGLE-2005-BLG-390Lb - Gravity Reveals First Cool Rocky/icy Exoplanet

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008mgm..conf..670d&link_type=abstract

"THE ELEVENTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation an

Physics

Scientific paper

Gravitational microlensing is currently the only technique capable of detecting exoplanets down to Earth mass that share their evolutionary history with potentially habitable planets. A network of five 1m-class optical telescopes distributed in longitude around the southern hemisphere enables PLANET (Probing Lensing Anomalies NETwork) to characterize such planets in observed deviations, lasting from hours to days, to ongoing microlensing events. Since 2005, PLANET operates a common microlensing campaign with RoboNet-l.O, a network of UK-built robotic 2m-telescopes. We report the discovery of OGLE-2005-BLG-390Lb, with a mass of 3-10 Earth masses orbiting an M-dwarf at about 3 AU the first cool rocky/icy exoplanet. This provides the first observational hint that planets like Earth are common in the Universe. Royal Society University Research Fellow on behalf of the PLANET and RoboNet collaborations.

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