Mocnik, T ORCID: 0000-0003-4603-556X, Hellier, C ORCID: 0000-0002-3439-1439 and Taylor, J (2018) WASP-104b is darker than charcoal. Astronomical Journal, 156 (2). ISSN 0004-6256

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Abstract

By analyzing the K2 short-cadence data from Campaign 14, we detect phase-curve modulation in the light curve of the hot-Jupiter host star WASP-104. The ellipsoidal modulation is detected with high significance and in agreement with theoretical expectations, while Doppler beaming and reflection modulations are detected tentatively. We show that the visual geometric albedo is lower than 0.03 at 95% confidence, making it one of the least-reflective planets found to date. The light curve also exhibits a rotational modulation, implying a stellar rotational period likely to be near 23 or 46 days. In addition, we refine the system parameters and place tight upper limits for transit timing and duration variations, starspot occultation events, and additional transiting planets.

Item Type: Article
Additional Information: This is the final published version of the article (version of record). It first appeared online via IOP at http://doi.org/10.3847/1538-3881/aacb26 - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: planets and satellites, fundamental parameters, individual (WASP-104b)
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Depositing User: Symplectic
Date Deposited: 27 Jul 2018 15:39
Last Modified: 27 Jul 2018 15:52
URI: http://eprints.keele.ac.uk/id/eprint/5165

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