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9 papers · 2 filters
Tests of the planetary hypothesis for PTFO 8-8695b
Liang Yu, Joshua N. Winn, Michaël Gillon +16
The T Tauri star PTFO 8-8695 exhibits periodic fading events that have been interpreted as the transits of a giant planet on a precessing orbit. Here we present three tests of the…
Kozai-Lidov cycles towards the limit of circumbinary planets
David V. Martin, Amaury H. M. J. Triaud
In this paper we answer a simple question: can a misaligned circumbinary planet induce Kozai-Lidov cycles on an inner stellar binary? We use known analytic equations to analyse the…
WASP-120b, WASP-122b and WASP-123b: Three newly discovered planets from the WASP-South survey
O. D. Turner, D. R. Anderson, A. Collier Cameron +15
We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ~ 11). WASP-120b is a massive (5.0MJup) planet in a 3.6-day orbit that we f…
Spitzer Secondary Eclipse Observations of Five Cool Gas Giant Planets and Empirical Trends in Cool Planet Emission Spectra
Joshua A. Kammer, Heather A. Knutson, Michael R. Line +15
In this work we present Spitzer 3.6 and 4.5 micron secondary eclipse observations of five new cool (<1200 K) transiting gas giant planets: HAT-P-19b, WASP-6b, WASP-10b, WASP-39b, a…
WASP-121 b: a hot Jupiter in a polar orbit and close to tidal disruption
L. Delrez, A. Santerne, J. -M. Almenara +19
We present the discovery by the WASP-South survey, in close collaboration with the Euler and TRAPPIST telescopes, of WASP-121 b, a new remarkable short-period transiting hot Jupite…
WASP-80b has a dayside within the T-dwarf range
Amaury H. M. J. Triaud, Michael Gillon, David Ehrenreich +16
WASP-80b is a missing link in the study of exo-atmospheres. It falls between the warm Neptunes and the hot Jupiters and is amenable for characterisation, thanks to its host star's…
Hubble Space Telescope search for the transit of the Earth-mass exoplanet Alpha Centauri Bb
Brice-Olivier Demory, David Ehrenreich, Didier Queloz +13
Results from exoplanet surveys indicate that small planets (super-Earth size and below) are abundant in our Galaxy. However, little is known about their interiors and atmospheres.…
Dynamical Stability of Imaged Planetary Systems in Formation: Application to HL Tau
Daniel Tamayo, Amaury H. M. J. Triaud, Kristen Menou +1
A recent ALMA image revealed several concentric gaps in the protoplanetary disk surrounding the young star HL Tau. We consider the hypothesis that these gaps are carved by planets,…
Circumbinary planets - why they are so likely to transit
David V. Martin, Amaury H. M. J. Triaud
Transits on single stars are rare. The probability rarely exceeds a few per cent. Furthermore, this probability rapidly approaches zero at increasing orbital period. Therefore tran…