Eccentricity formation and habitable planets in OGLE-06-109L system
Department of Astronomy, Nanjing University, Nanjing 210093, China
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Recent observation of microlensing technique reveals two giant planets at 2.3 AU and 4.6 AU around the star OGLE-06-109L. We investigate the eccentricity formation of these two planets, and find that planetary scattering or resonance crossing may be the reason for their eccentricity excitation. In the inner region of the system, super-Earth planets may be survival in habitable zone (0.25–0.36 AU).
© Owned by the authors, published by EDP Sciences, 2011