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| Paper: |
An Upper Limit on Star Light Reflected from the Hot Jupiter HD 75289 b |
| Volume: |
398, Extreme Solar Systems |
| Page: |
397 |
| Authors: |
Rodler, F.; Kürster, M. |
| Abstract: |
Searching for reflected light from hot Jupiters is an interesting approach to obtain information about planetary atmospheres. However, no detection has been made so far. We present our results of a reanalysis of VLT/UT2 UVES data of the planetary system of HD 75289, and find that the published value of the planet-to-star flux ratio was based on erroneous orbital phase information. We establish a new upper limit of the planet-to-star flux ratio of 6.6 × 10−5 (at the 99.9 % confidence level) for an orbital inclination of 60°. Assuming a grey albedo, a Venus like phase function, and a planetary radius of 1.3RJup, this upper limit corresponds to a geometric albedo < 0.35. |
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