Abstract
We report the discovery of a Saturn-sized planet transiting a V = 11.3, K4 dwarf star every 3.9 days. WASP-29b has a mass of 0.24 plusmn 0.02 M $_Jup$ and a radius of 0.79 plusmn 0.05 R $_Jup$, making it the smallest planet so far discovered by the WASP survey, and the exoplanet most similar in mass and radius to Saturn. The host star WASP-29 has an above-solar metallicity and fits a possible correlation for Saturn-mass planets such that planets with higher-metallicity host stars have higher core masses and thus smaller radii.
Original language | English |
---|---|
Pages (from-to) | L60-L63 |
Journal | Astrophysical Journal Letters |
Volume | 723 |
DOIs | |
Publication status | Published - 1 Nov 2010 |
Keywords
- stars: individual: WASP-29, planetary systems