We report the discovery from K2 of two transiting hot Jupiter systems. K2-295 (observed in Campaign 8) is a K5 dwarf which hosts a planet slightly smaller than Jupiter, orbiting with a period of 4.0 d. We have made an independent discovery of K2-237 b (Campaign 11), which orbits an F9 dwarf every 2.2 d and has an inflated radius 60-70% larger than that of Jupiter. We use high-precision radial velocity measurements, obtained using the HARPS and FIES spectrographs, to measure the planetary masses. We find that K2-295 b has a similar mass to Saturn, while K2-237 b is a little more massive than Jupiter.
- Pub Date:
- June 2019
- Planetary systems;
- Planets and satellites: detection;
- Planets and satellites: individual: K2-295;
- Astrophysics - Earth and Planetary Astrophysics
- 26 pages, 12 figures, accepted for publication in Acta Astronomica