WASP-37b: A 1.8 M J Exoplanet Transiting a Metal-poor Star
| Data(s) |
01/01/2011
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| Resumo |
We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m v = 12.7 G2-type dwarf, with a period of 3.577469 ± 0.000011 d, transit epoch T 0 = 2455338.6188 ± 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304+0.0018 –0.0017 d. The planetary companion has a mass M p = 1.80 ± 0.17 M J and radius R p = 1.16+0.07 –0.06 R J, yielding a mean density of 1.15+0.12 –0.15 ?J. From a spectral analysis, we find that the host star has M sstarf = 0.925 ± 0.120 M sun, R sstarf = 1.003 ± 0.053 R sun, T eff = 5800 ± 150 K, and [Fe/H] = –0.40 ± 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet. |
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Simpson , E K , Faedi , F , Barros , S C C , Brown , D J A , Collier Cameron , A , Hebb , L , Pollacco , D , Smalley , B , Todd , I , Butters , O W , Hebrard , G , McCormac , J , Miller , G R M , Santerne , A , Street , R A , Skillen , I , Triaud , A H M J , Anderson , D R , Bento , J , Boisse , I , Bouchy , F , Enoch , B , Haswell , C A , Hellier , C A , Holmes , S , Horne , K , Keenan , F P , Lister , T A , Maxted , P F L , Moulds , V , Moutou , C , Norton , A J , Parley , N , Pepe , F , Queloz , D , Segransan , D , Smith , A M S , Stempels , H C , Udry , S , Watson , C A , West , R G & Wheatley , P J 2011 , ' WASP-37b: A 1.8 M J Exoplanet Transiting a Metal-poor Star ' Astronomical Journal , vol 141 , 8 , pp. 1-7 . DOI: 10.1088/0004-6256/141/1/8 |
| Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/1900/1912 #Space and Planetary Science #/dk/atira/pure/subjectarea/asjc/3100/3103 #Astronomy and Astrophysics |
| Tipo |
article |
