Mancini, L and Kemmer, J and Southworth, J and Bott, K and Molliere, P and Ciceri, S and Chen, G and Henning, T (2016) An optical transmission spectrum of the giant planet WASP-36 b. Monthly Notices of the Royal Astronomical Society, 459 (2). 1393 -1402. ISSN 1365-2966

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Abstract

We present broad-band photometry of five transits in the planetary system WASP-36, totalling 17 high-precision light curves. Four of the transits were simultaneously observed in four passbands (g′, r′, i′, z′), using the telescope-defocusing technique, and achieving scatters of less than 1 mmag per observation. We used these data to improve the measured orbital and physical properties of the system, and obtain an optical transmission spectrum of the planet. We measured a decreasing radius from bluer to redder passbands with a confidence level of more than 5σ. The radius variation is roughly 11 pressure scale heights between the g′ and the z′ bands. This is too strong to be Rayleigh scattering in the planetary atmosphere, and implies the presence of a species which absorbs strongly at bluer wavelengths.

Item Type: Article
Additional Information: This is the final published version of the article Mancini, L. et al., 2016. An optical transmission spectrum of the giant planet WASP-36 b. Monthly Notices of the Royal Astronomical Society, 459(2), pp.1393–1402. It first appeared online via Oxford University Press at https://doi.org/10.1093/mnras/stw659 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: techniques, photometric, stars, fundamental parameters, individual, WASP-36, planetary systems
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Natural Sciences > School of Physical and Geographical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 01 Nov 2016 14:40
Last Modified: 19 Sep 2017 13:00
URI: http://eprints.keele.ac.uk/id/eprint/2396

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