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11 papers · 2 filters
Colour-Magnitude Diagrams of Transiting Exoplanets. I - Systems with parallaxes
Amaury H. M. J. Triaud
Broadband flux measurements centred around [3.6 m] and [4.5 m] obtained with Spitzer during the occultation of seven extrasolar planets by their host stars have been combined…
Transiting planets from WASP-South, Euler and TRAPPIST: WASP-68 b, WASP-73 b and WASP-88 b, three hot Jupiters transiting evolved solar-type stars
L. Delrez, V. Van Grootel, D. R. Anderson +19
We report the discovery by the WASP transit survey of three new hot Jupiters, WASP-68 b, WASP-73 b and WASP-88 b. WASP-68 b has a mass of 0.95+-0.03 M_Jup, a radius of 1.24-0.06+0.…
A Ground-based Optical Transmission Spectrum of WASP-6b
Andrés Jordán, Néstor Espinoza, Markus Rabus +9
We present a ground based optical transmission spectrum of the inflated sub-Jupiter mass planet WASP-6b. The spectrum was measured in twenty spectral channels from 480 nm to 860nm…
Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b & WASP-90b
R. G. West, J. -M. Almenara, D. R. Anderson +22
We report three new transiting hot-Jupiter planets discovered from the WASP surveys combined with radial velocities from OHP/SOPHIE and Euler/CORALIE and photometry from Euler and…
Searching for Terrestrial Planets Orbiting in the Habitable Zone of Ultra-Cool Stars and Brown Dwarfs
Brice-Olivier Demory, Sara Seager, Jack Lissauer +11
We propose to use Kepler in 2-wheel mode to conduct a detailed search for Earth-sized planets orbiting ultra-cool stars and brown dwarfs (spectral types from M7 to L3). This popula…
Search for a habitable terrestrial planet transiting the nearby red dwarf GJ 1214
M. Gillon, B. -O. Demory, N. Madhusudhan +12
High-precision eclipse spectrophotometry of transiting terrestrial exoplanets represents a promising path for the first atmospheric characterizations of habitable worlds and the se…
Discovery of WASP-65b and WASP-75b: Two Hot Jupiters Without Highly Inflated Radii
Y. Gómez Maqueo Chew, F. Faedi, D. Pollacco +38
We report the discovery of two transiting hot Jupiters, WASP-65b (M_pl = 1.55 +/- 0.16 M_J; R_pl = 1.11 +/- 0.06 R_J), and WASP-75b (M_pl = 1.07 +/- 0.05 M_J; R_pl = 1.27 +/- 0.05…
A search for rocky planets transiting brown dwarfs
Amaury H. M. J. Triaud, Michael Gillon, Franck Selsis +18
Exoplanetary science has reached a historic moment. The James Webb Space Telescope will be capable of probing the atmospheres of rocky planets, and perhaps even search for biologic…
Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems
D. J. A. Brown, A. Collier Cameron, R. F. Díaz +14
We present measurements of the spin-orbit alignment angle, lambda, for the hot Jupiter systems WASP-32, WASP-38, and HAT-P-27/WASP-40, based on data obtained using the HARPS spectr…
Warm Spitzer Occultation Photometry of WASP-26b at 3.6μm and 4.5μm
D. P. Mahtani, P. F. L. Maxted, D. R. Anderson +13
We present new warm Spitzer occultation photometry of WASP-26 at 3.6μm and 4.5μm along with new transit photometry taken in the g,r and i bands. We report the first detection of th…
WASP-80b: a gas giant transiting a cool dwarf
Amaury H. M. J. Triaud, D. R. Anderson, A. Collier Cameron +17
We report the discovery of a planet transiting the star WASP-80 (1SWASP J201240.26-020838.2; 2MASS J20124017-0208391; TYC 5165-481-1; BPM 80815; V=11.9, K=8.4). Our analysis shows…