GTC OSIRIS transiting exoplanet atmospheric survey: detection of potassium in HAT-P-1b from narrowband spectrophotometry

Paul A Wilson,D K Sing,N Nikolov,A Lecavelier Des Etangs,Frederic Pont,Jonathan J Fortney,G E Ballester,Mercedes Lopezmorales,J M Desert, Alfred Vidalmadjar

Monthly Notices of the Royal Astronomical Society（2015）

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摘要

We present the detection of potassium in the atmosphere of HAT-P-1b using optical transit narrow-band photometry. The results are obtained using the 10.4-m Gran Telescopio Canarias together with the OSIRIS instrument in tunable filter imaging mode. We observed four transits, two at continuum wavelengths outside the potassium feature, at 6792 and 8844 Å, and two probing the potassium feature in the...

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techniques: photometric,stars: individual: HAT-P-1b,planetary systems

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