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From dense hot Jupiter to low-density Neptune : the discovery of WASP-127b, WASP-136b, and WASP-138b
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dc.contributor.author | Lam, K. W. F. | |
dc.contributor.author | Faedi, F. | |
dc.contributor.author | Brown, D. J. A. | |
dc.contributor.author | Anderson, D. R. | |
dc.contributor.author | Delrez, L. | |
dc.contributor.author | Gillon, M. | |
dc.contributor.author | Hébrard, G. | |
dc.contributor.author | Lendl, M. | |
dc.contributor.author | Mancini, L. | |
dc.contributor.author | Southworth, J. | |
dc.contributor.author | Smalley, B. | |
dc.contributor.author | Triaud, A. H. M. | |
dc.contributor.author | Turner, O. D. | |
dc.contributor.author | Hay, K. L. | |
dc.contributor.author | Armstrong, D. J. | |
dc.contributor.author | Barros, S. C. C. | |
dc.contributor.author | Bonomo, A. S. | |
dc.contributor.author | Bouchy, F. | |
dc.contributor.author | Boumis, P. | |
dc.contributor.author | Collier Cameron, A. | |
dc.contributor.author | Doyle, A. P. | |
dc.contributor.author | Hellier, C. | |
dc.contributor.author | Henning, T. | |
dc.contributor.author | Jehin, E. | |
dc.contributor.author | King, G. | |
dc.contributor.author | Kirk, J. | |
dc.contributor.author | Louden, T. | |
dc.contributor.author | Maxted, P. F. L. | |
dc.contributor.author | McCormac, J. J. | |
dc.contributor.author | Osborn, H. P. | |
dc.contributor.author | Palle, E. | |
dc.contributor.author | Pepe, F. | |
dc.contributor.author | Pollacco, D. | |
dc.contributor.author | Prieto-Arranz, J. | |
dc.contributor.author | Queloz, D. | |
dc.contributor.author | Rey, J. | |
dc.contributor.author | Ségransan, D. | |
dc.contributor.author | Udry, S. | |
dc.contributor.author | Walker, S. | |
dc.contributor.author | West, R. G. | |
dc.contributor.author | Wheatley, P. J. | |
dc.date.accessioned | 2017-03-15T11:30:10Z | |
dc.date.available | 2017-03-15T11:30:10Z | |
dc.date.issued | 2017-03-01 | |
dc.identifier | 249376428 | |
dc.identifier | 5fc761b7-6179-4f87-b0f3-3476ec528222 | |
dc.identifier | 85013466570 | |
dc.identifier | 000395821900055 | |
dc.identifier.citation | Lam , K W F , Faedi , F , Brown , D J A , Anderson , D R , Delrez , L , Gillon , M , Hébrard , G , Lendl , M , Mancini , L , Southworth , J , Smalley , B , Triaud , A H M , Turner , O D , Hay , K L , Armstrong , D J , Barros , S C C , Bonomo , A S , Bouchy , F , Boumis , P , Collier Cameron , A , Doyle , A P , Hellier , C , Henning , T , Jehin , E , King , G , Kirk , J , Louden , T , Maxted , P F L , McCormac , J J , Osborn , H P , Palle , E , Pepe , F , Pollacco , D , Prieto-Arranz , J , Queloz , D , Rey , J , Ségransan , D , Udry , S , Walker , S , West , R G & Wheatley , P J 2017 , ' From dense hot Jupiter to low-density Neptune : the discovery of WASP-127b, WASP-136b, and WASP-138b ' , Astronomy & Astrophysics , vol. 599 , A3 . https://doi.org/10.1051/0004-6361/201629403 | en |
dc.identifier.issn | 0004-6361 | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/58531366 | |
dc.identifier.uri | https://hdl.handle.net/10023/10469 | |
dc.description.abstract | We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18 ± 0.02 MJ and radius 1.37 ± 0.04 RJ. This is one of the least massive planets discovered by the WASP project. It orbits a bright host star (Vmag = 10.16) of spectral type G5 with a period of 4.17 days. WASP-127b is a low-density planet that has an extended atmosphere with a scale height of 2500 ± 400 km, making it an ideal candidate for transmission spectroscopy. WASP-136b and WASP-138b are both hot Jupiters with mass and radii of 1.51 ± 0.08 MJ and 1.38 ± 0.16 RJ, and 1.22 ± 0.08 MJ and 1.09 ± 0.05 RJ, respectively. WASP-136b is in a 5.22-day orbit around an F9 subgiant star with a mass of 1.41 ± 0.07 M⊙ and a radius of 2.21 ± 0.22 R⊙. The discovery of WASP-136b could help constrain the characteristics of the giant planet population around evolved stars. WASP-138b orbits an F7 star with a period of 3.63 days. Its radius agrees with theoretical values from standard models, suggesting the presence of a heavy element core with a mass of ∼ 10 M⊕. The discovery of these new planets helps in exploring the diverse compositional range of short-period planets, and will aid our understanding of the physical characteristics of both gas giants and low-density planets. | |
dc.format.extent | 10 | |
dc.format.extent | 1303637 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astronomy & Astrophysics | en |
dc.subject | Planetary systems | en |
dc.subject | Stars: individual: WASP-127 | en |
dc.subject | Stars: individual: WASP-136 | en |
dc.subject | Stars: individual: WASP-138 | en |
dc.subject | Techniques: photometric | en |
dc.subject | Techniques: radial velocities | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | Astronomy and Astrophysics | en |
dc.subject | Space and Planetary Science | en |
dc.subject | NDAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | From dense hot Jupiter to low-density Neptune : the discovery of WASP-127b, WASP-136b, and WASP-138b | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | PPARC - Now STFC | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | 10.1051/0004-6361/201629403 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/1607.07859 | en |
dc.identifier.grantnumber | ST/I000666/1 | en |
dc.identifier.grantnumber | PP/D000890/1 | en |
dc.identifier.grantnumber | ST/M001296/1 | en |
dc.identifier.grantnumber | ST/G001006/1 | en |
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