Reference : WASP-64b and WASP-72b: two new transiting highly irradiated giant planets
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/135082
WASP-64b and WASP-72b: two new transiting highly irradiated giant planets
English
Gillon, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Anderson, D. R. [> >]
Collier-Cameron, A. [> >]
Doyle, A. P. [> >]
Fumel, Aurélie [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Hellier, C. [> >]
Jehin, Emmanuel mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Lendl, M. [> >]
Maxted, P. F. L. [> >]
Montalban Iglesias, Josefa mailto [> >]
Pepe, F. [> >]
Pollacco, D. [> >]
Queloz, D. [> >]
Segransan, D. [> >]
Smith, A. M. S. [> >]
Smalley, B. [> >]
Southworth, J. [> >]
Triaud, A. H. M. J. [> >]
Udry, S. [> >]
West, R. G. [> >]
1-Apr-2013
Astronomy and Astrophysics
EDP Sciences
552
82
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] Astrophysics - Earth and Planetary Astrophysics
[en] We report the discovery by the WASP transit survey of two new highly irradiated giant planets. WASP-64 b is slightly more massive (1.271 ± 0.068 MJup) and larger (1.271 ± 0.039 RJup) than Jupiter, and is in very-short (a = 0.02648 ± 0.00024 AU, P = 1.5732918 ± 0.0000015 days) circular orbit around a V = 12.3 G7-type dwarf (1.004 ± 0.028 Msun, 1.058 ± 0.025 Rsun, Teff = 5500 ± 150 K). Its size is typical of hot Jupiters with similar masses. WASP-72 b has also a mass a bit higher than Jupiter's (1.461-0.056+0.059 MJup) and orbits very close (0.03708 ± 0.00050 AU, P = 2.2167421 ± 0.0000081 days) to a bright (V = 9.6) and moderately evolved F7-type star (1.386 ± 0.055 Msun, 1.98 ± 0.24 Rsun, Teff = 6250 ± 100 K). Despite its extreme irradiation (~5.5 × 109 erg s-1 cm-2), WASP-72 b has a moderate size (1.27 ± 0.20 RJup) that could suggest a significant enrichment in heavy elements. Nevertheless, the errors on its physical parameters are still too high to draw any strong inference on its internal structure or its possible peculiarity.
http://hdl.handle.net/2268/135082
http://adsabs.harvard.edu/abs/2013A%26A...552A..82G

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