WASP-40b: Independent Discovery of the 0.6 M$_Jup$ Transiting Exoplanet HAT-P-27b
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From WASP photometry and SOPHIE radial velocities we report the discovery of WASP-40b (HAT-P-27b), a 0.6 M$_Jup$ planet that transits its 12th magnitude host star every 3.04 days. The host star is of late G-type or early K-type and likely has a metallicity greater than solar ([Fe/H] = 0.14 plusmn 0.11). The planetrsquos mass and radius are typical of the known hot Jupiters, thus adding another system to the apparent pileup of transiting planets with periods near 3-4 days. Our parameters match those of the recent HATnet announcement of the same planet, thus giving confidence in the techniques used. We report a possible indication of stellar activity in the host star.
|Number of pages||1|
|Journal||Publications of the Astronomical Society of the Pacific|
|Publication status||Published - 1 May 2011|