* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Post Info TOPIC: CoRoT-13b


L

Posts: 131433
Date:
CoRoT-13b
Permalink  
 


Title: Transiting exoplanets from the CoRoT space mission. XIII. CoRoT-13b: a dense hot Jupiter in transit around a star with solar metallicity and super-solar lithium content
Authors: J. Cabrera, H. Bruntt, M. Ollivier, R. F. Diaz, Sz. Csizmadia, S. Aigrain, R. Alonso, J.-M. Almenara, M. Auvergne, A. Baglin, P. Barge, A. S. Bonomo, P. Borde, F. Bouchy, L. Carone, S. Carpano, M. Deleuil, H. J. Deeg, R. Dvorak, A. Erikson, S. Ferraz-Mello, M. Fridlund, D. Gandolfi, J.-C. Gazzano, M. Gillon, E. W. Guenther, T. Guillot, A. Hatzes, M. Havel, G. Hebrard, L. Jorda, A. Leger, A. Llebaria, H. Lammer, C. Lovis, T. Mazeh, C. Moutou, A. Ofir, P. von Paris, M. Patzold, D. Queloz, H. Rauer, D. Rouan, A. Santerne, J. Schneider, B. Tingley, R. Titz-Weider, G. Wuchterl

We announce the discovery of the transiting planet CoRoT-13b. Ground based follow-up in CFHT and IAC80 confirmed CoRoT's observations. The mass of the planet was measured with the HARPS spectrograph and the properties of the host star were obtained analysing HIRES spectra from the Keck telescope. It is a hot Jupiter-like planet with an orbital period of 4.04 days, 1.3 Jupiter masses, 0.9 Jupiter radii, and a density of 2.34 g cm-3. It orbits a G0V star with Teff=5945K, M*=1.09 Msun, R*=1.01 Rsun, solar metallicity, a lithium content of +1.45 dex, and an estimated age between 0.12 and 3.15 Gyr. The lithium abundance of the star is consistent with its effective temperature, activity level, and age range derived from the stellar analysis. The density of the planet is extreme for its mass. It implies the existence of an amount of heavy elements with a mass between about 140 and 300 Mearth.

Read more (1447kb, PDF)

__________________
Page 1 of 1  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard