Reference : WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical trip...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/95262
WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system
English
Smalley, B. [> > > >]
Anderson, D. R. [> > > >]
Collier Cameron, A. [> > > >]
Hellier, C. [> > > >]
Lendl, M. [> > > >]
Maxted, P. F. L. [> > > >]
Queloz, D. [> > > >]
Triaud, A H M J [> > > >]
West, R. G. [> > > >]
Bentley, S. J. [> > > >]
Enoch, B. [> > > >]
Gillon, Michaël mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image >]
Lister, T. A. [> > > >]
Pepe, F. [> > > >]
Pollacco, D. [> > > >]
Segransan, D. [> > > >]
Smith, A. M. S. [> > > >]
Southworth, J. [> > > >]
Udry, S. [> > > >]
Wheatley, P. J. [> > > >]
Wood, P. L. [> > > >]
Bento, J. [> > > >]
1-Feb-2011
Astronomy and Astrophysics
EDP Sciences
526
A130
Yes (verified by ORBi)
International
0004-6361
1432-0746
Les Ulis
France
[en] Astrophysics - Earth and Planetary Astrophysics
[en] We report the discovery of WASP-34b, a sub-Jupiter-mass exoplanet transiting its 10.4-magnitude solar-type host star (1SWASP J110135.89-235138.4; TYC 6636-540-1) every 4.3177 days in a slightly eccentric orbit (e = 0.038 +/- 0.012). We find a planetary mass of 0.59 +/- 0.01 M_Jup and radius of 1.22 ^{+0.11}_{-0.08} R_Jup. There is a linear trend in the radial velocities of 55+/-4 m/s/y indicating the presence of a long-period third body in the system with a mass > 0.45 M_Jup at a distance of >1.2 AU from the host star. This third-body is either a low-mass star, white dwarf, or another planet. The transit depth ((R_P/R_*)^2 = 0.0126) and high impact parameter (b = 0.90) suggest that this could be the first known transiting exoplanet expected to undergo grazing transits, but with a confidence of only ~80%.
http://hdl.handle.net/2268/95262
http://adsabs.harvard.edu/abs/2010arXiv1012.2278S

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