Transmission spectra of giant planets

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Transmission spectra of giant planets

Post by Lazarus on 22nd October 2012, 1:41 pm

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.
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Re: Transmission spectra of giant planets

Post by Lazarus on 31st October 2012, 5:08 am

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.
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