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A search for starlight reflected from HD 75289 b

C. Leigh·A. Collier Cameron·S. Udry·J. -F. Donati·K. Horne·D. James·A. Penny
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Abstract

We have used a doppler tomographic analysis to conduct a deep search for the starlight reflected from the planetary companion to HD 75289. In 4 nights on VLT2/UVES in January 2003, we obtained 684 high resolution echelle spectra with a total integration time of 26 hours. We establish an upper limit on the planet's geometric albedo p < 0.12 (to the 99.9% significance level) at the most probable orbital inclination i ~ 60 degrees, assuming a grey albedo, a Venus-like phase function and a planetary radius R_p = 1.6 R_Jup. We are able to rule out some combinations of the predicted planetary radius and atmospheric albedo models with high, reflective cloud decks.

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C. Leigh, A. Collier Cameron, S. Udry, J. -F. Donati, K. Horne, D. James, A. Penny. 2003-10-17. A search for starlight reflected from HD 75289 b. https://doi.org/10.1046/j.1365-2966.2003.07276.x

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