Transiting exoplanets from the CoRoT space mission V. CoRoT-Exo-4b: Stellar and planetary parameters
arXiv:0807.3739 · doi:10.1051/0004-6361:200810273
Abstract
The CoRoT satellite has announced its fourth transiting planet (Aigrain et al. 2008) with space photometry. We describe and analyse complementary observations of this system performed to establish the planetary nature of the transiting body and to estimate the fundamental parameters of the planet and its parent star. We have analysed high precision radial-velocity data, ground-based photometry, and high signal-to-noise ratio spectroscopy. The parent star CoRoT-Exo-4 (2MASS 06484671-0040219) is a late F-type star of mass of 1.16 Msun and radius of 1.17 Rsun. The planet has a circular orbit with a period of 9.20205d. The planet radius is 1.19 Rjup and the mass is 0.72 Mjup. It is a gas-giant planet with a ''normal'' internal structure of mainly H and He. CoRoT-Exo-4b has the second longest period of the known transiting planets. It is an important discovery since it occupies an empty area in the mass-period diagram of transiting exoplanets.
accepted in A&AL
References in corpus (7)
- Transiting exoplanets from the CoRoT space mission I - CoRoT-Exo-1b: a low-density short-period planet around a G0V star
- Heat transport in giant (exo)planets: a new perspective
- HD 17156b: A Transiting Planet with a 21.2 Day Period and an Eccentric Orbit
- Transiting exoplanets from the CoRoT space mission IV: CoRoT-Exo-4b: A transiting planet in a 9.2 day synchronous orbit
- A spectroscopic study of southern (candidate) gamma Doradus stars. II. Detailed abundance analysis and fundamental parameters
- The Centurion 18 telescope of the Wise Observatory
- Lithium abundances in the old open cluster NGC 3960 from VLT/FLAMES observations
Cited by in corpus (6)
- Homogeneous studies of transiting extrasolar planets. II. Physical properties
- Inflating and Deflating Hot Jupiters: Coupled Tidal and Thermal Evolution of Known Transiting Planets
- Transiting exoplanets from the CoRoT space mission IV: CoRoT-Exo-4b: A transiting planet in a 9.2 day synchronous orbit
- The BAST algorithm for transit detection
- Characterization of CoRoT target fields with BEST: Identification of periodic variable stars in the LRa1 field
- Radial velocity follow-up for confirmation and characterization of transiting exoplanets