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The XMM-Newton serendipitous survey. V. The Second XMM-Newton serendipitous source catalogue
Aims. Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes the creation and characteristics of
WASP-12b: The hottest transiting extrasolar planet yet discovered
The planet has an equilibrium temperature of T eq = 2516 K caused by its very short period orbit around the hot, twelfth magnitude host star and has the largest radius of any transiting planet yet detected.
The WASP project and the superWASP cameras
ABSTRACT The SuperWASP cameras are wide‐field imaging systems at the Observatorio del Roque de los Muchachos on the island of La Palma in the Canary Islands, and at the Sutherland Station of the
Line-profile tomography of exoplanet transits - II. A gas-giant planet transiting a rapidly rotating A5 star
Photometry and time-series spectroscopy through three separate transits are used to confirm the existence of a gas-giant planet with an orbital period of 1.22 d in orbit around HD 15082, and opens the way to studying the formation of planets around a whole new class of young, early-type stars, hence under different physical conditions and generally in an earlier stage of formation than in sharp-lined late- type stars.
WASP-19b: The Shortest Period Transiting Exoplanet Yet Discovered
We report on the discovery of a new extremely short period transiting extrasolar planet, WASP-19b. The planet has mass M pl = 1.15 ± 0.08 MJ , radius R pl = 1.31 ± 0.06 RJ , and orbital period P =
An orbital period of 0.94 days for the hot-Jupiter planet WASP-18b
Either WASP-18 is in a rare, exceptionally short-lived state, or the tidal dissipation in this system (and possibly other hot-Jupiter systems) must be much weaker than in the Solar System.
WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE
Using the newly commissioned radial-velocity spectrograph SOPHIE at the Observatoire de Haute-Provence, it is found that WasP-1b and WASP-2b exhibit reflex orbital radial-VELocity variations with amplitudes characteristic of planetary-mass companions and in-phase with the photometric orbits.
Stellar rotation in the Hyades and Praesepe: gyrochronology and braking time-scale
We present the results of photometric surveys for stellar rotation in the Hyades and in Praesepe, using data obtained as part of the SuperWASP exoplanetary transit-search programme. We determined
A high C/O ratio and weak thermal inversion in the atmosphere of exoplanet WASP-12b
It is found that the extremely irradiated atmosphere of WASP-12b lacks a prominent thermal inversion (or stratosphere) and has very efficient day–night energy circulation, in stark contrast to theoretical predictions for the most highly irradiated hot-Jupiter atmospheres.
New periodic variable stars coincident with ROSAT sources discovered using SuperWASP
We present optical lightcurves of 428 periodic variable stars coincident with ROSAT X-ray sources, detected using the first run of the SuperWASP photometric survey. Only 68 of these were previously