A transit timing analysis with combined ground- and space-based photometry
1 European Space Agency, ESTEC, SRE-S, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
2 Instituto de Astrofisica de Andalucia (IAA-CSIC), Glorieta de la Astronomía, 18008 Granada, Spain
3 Astrophysikalisches Institut und Universitäts-Sternwarte, Schillergäßchen 2-3, Jena, Germany
4 Centre for Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland
Published online: 23 September 2015
The analysis of timing variations of transiting exoplanets allows one to discover additional planets in the system. Such bodies can be very low in mass and radius, so that they remain undetected by transit or radial velocity methods.
The CoRoT satellite looks back on six years of high precision photometry of a very high number of stars. Thousands of transiting events are detected from which 27 were confirmed to be transiting planets so far. In my research I search and analyze TTVs in the CoRoT sample and combine the unprecedented precision of the light curves with ground-based follow-up photometry. Because CoRoT can observe transiting planets only for a maximum duration of 150 days the ground-based follow-up can help to refine the ephemeris. Here we present first examples.
© Owned by the authors, published by EDP Sciences, 2015
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