HATS-9b AND HATS-10b: TWO COMPACT HOT JUPITERS IN FIELD 7 OF THE K2 MISSION
Authors:
Brahm et al
Abstract:
We report the discovery of two transiting extrasolar planets by the HATSouth survey. HATS-9b orbits an old (10.8 ± 1.5 Gyr) V=13.3 G dwarf star, with a period P = 1.9153 d. The host star has a mass of 1.03 M⊙, radius of 1.503 R⊙ and effective temperature 5366 ± 70 K. The planetary companion has a mass of 0.837 MJ, and radius of 1.065 RJ yielding a mean density of 0.85 g cm−3 . HATS-10b orbits a V=13.1 G dwarf star, with a period P = 3.3128 d. The host star has a mass of 1.1 M⊙, radius of 1.11 R⊙ and effective temperature 5880 ± 120 K. The planetary companion has a mass of 0.53 MJ, and radius of 0.97 RJ yielding a mean density of 0.7 g cm−3 . Both planets are compact in comparison with planets receiving similar irradiation from their host stars, and lie in the nominal coordinates of Field 7 of K2 but only HATS-9b falls on working silicon. Future characterisation of HATS-9b with the exquisite photometric precision of the Kepler telescope may provide measurements of its reflected light signature.
Thursday, March 19, 2015
HATS-9b and HATS-10b: Two Anomalously Compact hot Jupiters to be Observed by Kepler's K2 Mission
Labels:
gas giant,
giant planets,
hats-10b,
hats-9b,
hot jupiters,
k2 mission,
kepler
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.