Transit Timing of OGLE-TR-111b

Details Transit Timing of OGLE-TR-111b Transit Timing of OGLE-TR-111b

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.0509a&link_type=abstract

American Astronomical Society, DPS meeting #41, #5.09

Astronomy and Astrophysics

Astronomy

Scientific paper

One way to find new exoplanets is to monitor the timing of multiple transits of a known exoplanet and search for deviations from a strictly constant period. OGLE-TR-111b is the first planet for which a transit timing variation has been claimed (Diaz et al. 2008, ApJ, 682, L49). This tentative detection was based on a non-linear trend observed in the timing residuals of five high-precision photometric light curves, which were observed in 2005 and 2006 at the VLT and the Magellan telescopes. We report on an additional six transits of OGLE-TR-111b from 2008 and 2009, which were observed with a new frame-transfer detector (MagIC-e2v) on the Magellan telescopes. We report the transit midtimes and the new transit ephemeris for this planet, and comment on the robustness of the claimed transit timing variation.
This work was supported by NASA Origins grant NNX07AN63G and Hubble Fellowship HF-01210.01-A.

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