FM8p.46 — Activity induced detection limits for Earth-sized planets from radial velocity studies

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Aug 4th at 6:00 PM until 7:30 PM

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Author(s): Heidi Korhonen3, Uffe Gråe Jørgensen2, Jan Marie Andersen1

Institution(s): 1. University of Boston, 2. University of Copenhagen, 3. University of Turku

The detection of exoplanets using any method is prone to confusion due to the intrinsic variability of the host star. We have recently investigated the effect of cool starspots on the detectability of exoplanets around solar-like stars and M dwarfs using the radial velocity method. Our methods use full radiative transfer, known stellar atomic and molecular lines, different surface spot configurations, and an added planetary signal. In this talk we present our methods, and apply them to studying the detectability of small planets, and especially the case of alpha Centauri B planet.