The Low Density Transiting Exoplanet WASP-15b


Autoria(s): West, R.G.; Anderson, D.R.; Gillon, M.; Hebb, L.; Hellier, C.; Maxted, P.F.L.; Queloz, D.; Smally, B.; Triaud, A.H.M.G.; Wilson, D.H.; Bentley, S.; Collier Cameron, A.; Enoch, B.; Horne, K.; Irwin, J.; Lister, T.A.; Mayor, M.; Parley, N.; Pepe, F.; Pollacco, Don; Segransan, D.; Spano, M.; Udry, S.; Wheatley, P.J.
Data(s)

01/06/2009

Resumo

We report the discovery of a low-density exoplanet transiting an 11th magnitude star in the Southern hemisphere. WASP-15b, which orbits its host star with a period P = 3.7520656 ± 0.0000028 d, has a mass M p = 0.542 ± 0.050 M J and radius R p = 1.428 ± 0.077 R J, and is therefore one of the least dense transiting exoplanets so far discovered (?p = 0.247 ± 0.035 g cm-3). An analysis of the spectrum of the host star shows it to be of spectral type around F5, with an effective temperature T eff = 6300 ± 100 K and [Fe/H] = -0.17 ± 0.11.

Identificador

http://pure.qub.ac.uk/portal/en/publications/the-low-density-transiting-exoplanet-wasp15b(375940f9-de12-4ce8-bf7b-fcd500425023).html

http://dx.doi.org/10.1088/0004-6256/137/6/4834

Idioma(s)

eng

Direitos

info:eu-repo/semantics/restrictedAccess

Fonte

West , R G , Anderson , D R , Gillon , M , Hebb , L , Hellier , C , Maxted , P F L , Queloz , D , Smally , B , Triaud , A H M G , Wilson , D H , Bentley , S , Collier Cameron , A , Enoch , B , Horne , K , Irwin , J , Lister , T A , Mayor , M , Parley , N , Pepe , F , Pollacco , D , Segransan , D , Spano , M , Udry , S & Wheatley , P J 2009 , ' The Low Density Transiting Exoplanet WASP-15b ' Astronomical Journal , vol 137 , pp. 4834-3836 . DOI: 10.1088/0004-6256/137/6/4834

Tipo

article