Abstract
From WASP photometry and SOPHIE radial velocities we report the discovery of WASP-40b (HAT-P-27b), a 0.6 M 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±0.11). The planet's 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.
Original language | English |
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Pages (from-to) | 555-560 |
Number of pages | 6 |
Journal | Publications of the Astronomical Society of the Pacific |
Volume | 123 |
Issue number | 903 |
DOIs | |
Publication status | Published - May 2011 |
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science