OGLE-TR-56b: The Most Interesting Transiting Planet

Details OGLE-TR-56b: The Most Interesting Transiting Planet OGLE-TR-56b: The Most Interesting Transiting Planet

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9805s&link_type=abstract

HST Proposal ID #9805

Other

Hst Proposal Id #9805 Star Formation

Scientific paper

Our team has recently succeeded in confirming spectroscopically the discovery of the first extrasolar giant planet found in a transit search: OGLE-TR-56b. Its main parameters are: mass = 0.9 Jupiters, size = 1.3 Jupiters. Thus, OGLE-TR-56b appears to be similar to HD 209458b, the only other known transiting giant planet. Unfortunately, our planet radius determination is uncertain due to the very limited precision of the ground-based photometry, and does not allow for a meaningful comparison with theoretical model predictions. We propose HST observations with the ACS-HRC of the main transit of OGLE-TR-56b, which will improve the precision and the accuracy of the planet parameters by close to a factor of 10. In addition, we propose a timing experiment for the planet's extremely close orbit {1.2-day period, 0.023 AU from the star}, which will allow us to detect the orbital decay and test convection theories.

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