HAT-P-38b: A Saturn-Mass Planet Transiting a Late G Star
Abstract
We report on the discovery of HAT-P-38b, a Saturn-mass exoplanet, transiting the V = 12.56 dwarf star GSC 2314-00559 on a P = 4.6404 d circular orbit. The host star is a 0.89 M☉ late G dwarf, with solar metallicity and a radius of 0.92 R☉. The planetary companion has a mass of 0.27 MJ and a radius of 0.82 RJ. HAT-P-38b is one of the planets the mass and radius of which have ever been discovered to be the closest to those of Saturn.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- October 2012
- DOI:
- 10.1093/pasj/64.5.97
- arXiv:
- arXiv:1201.5075
- Bibcode:
- 2012PASJ...64...97S
- Keywords:
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- stars: individual (GSC 2314-00559);
- stars: planetary systems;
- techniques: photometric;
- techniques: spectroscopic;
- Astrophysics - Earth and Planetary Astrophysics;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 9 pages, 5 figures, 6 tables, submitted to PASJ