Transmission spectra of giant planets

dF star Number of posts : 3337 Registration date : 2008-06-12

Transmission spectroscopy of exoplanet XO-2b observed with HST NICMOS
http://arxiv.org/abs/1210.5275

Has the advantage of having XO-2S in the field as a comparison star. But this is right at the limit of capability for NICMOS.

They also take a look at XO-1b.

dF star Number of posts : 3337 Registration date : 2008-06-12

A Gemini ground-based transmission spectrum of WASP-29b: a featureless spectrum from 515 to 720nm
http://arxiv.org/abs/1210.7798

First transmission spectrum of a "hot Saturn". The featureless spectrum suggests that the atmosphere does not contain sodium, there are clouds/hazes affecting the spectrum, or both.

» New Giant Planets at Red Giant Stars - HIP 8541 / HD 11343 and HIP 74890 / HD 135760
» New planets around K giant stars
» Cores and luminous giant planets
» Forming the giant planets in a few Myr
» Search for giant planets in M67