Hat-P-28b and Hat-P-29b: Two Sub-Jupiter Mass Transiting Planets
Abstract
We present the discovery of two transiting exoplanets. HAT-P-28b orbits a V = 13.03 G3 dwarf star with a period P = 3.2572 days and has a mass of 0.63 ± 0.04 M J and a radius of 1.21+0.11 - 0.08 R J yielding a mean density of 0.44 ± 0.09 g cm-3. HAT-P-29b orbits a V = 11.90 F8 dwarf star with a period P = 5.7232 days and has a mass of 0.78+0.08 - 0.04 M J and a radius of 1.11+0.14 - 0.08 R J yielding a mean density of 0.71 ± 0.18 g cm-3. We discuss the properties of these planets in the context of other known transiting planets.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- June 2011
- DOI:
- 10.1088/0004-637X/733/2/116
- arXiv:
- arXiv:1103.1813
- Bibcode:
- 2011ApJ...733..116B
- Keywords:
-
- planetary systems;
- stars: individual: HAT-P-28 GSC 2284-00503 HAT-P-29 GSC 3293-01539;
- techniques: photometric;
- techniques: spectroscopic;
- Astrophysics - Earth and Planetary Astrophysics
- E-Print:
- 10 pages, 9 figures, submitted to ApJ on 17 January, 2011, accepted 24 March, 2011
