Searching for Transit Timing Variations of the OGLE Planets

Details Searching for Transit Timing Variations of the OGLE Planets Searching for Transit Timing Variations of the OGLE Planets

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21631103a&link_type=abstract

American Astronomical Society, AAS Meeting #216, #311.03; Bulletin of the American Astronomical Society, Vol. 41, p.886

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. We present results from a program to obtain high-quality transit light curves using large telescopes with frame-transfer CCDs. New transits have been observed of five OGLE planets using the 6.5m Magellan telescopes. We have obtained over 30 high-quality light curves of the five original OGLE planets between 2006 and 2009. For OGLE-TR-111, we have not reproduced earlier claims of transit timing variations, and can place limits on companions as small as an Earth mass in a 2:1 mean motion resonance. We also report on results for OGLE-TR-56, OGLE-TR-113, OGLE-TR-132, and OGLE-TR-10.
This work was supported by NASA Origins grant NNX07AN63G and Hubble Fellowship HF-01210.01-A/HF-51233.01.

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