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A window on exoplanet dynamical histories : Rossiter-McLaughlin observations of WASP-13b and WASP-32b
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dc.contributor.author | Brothwell, R. D. | |
dc.contributor.author | Watson, C. A. | |
dc.contributor.author | Hebrard, G. | |
dc.contributor.author | Triaud, A. H. M. J. | |
dc.contributor.author | Cegla, H. M. | |
dc.contributor.author | Santerne, A. | |
dc.contributor.author | Hebrard, E. | |
dc.contributor.author | Anderson, D. R. | |
dc.contributor.author | Pollacco, D. | |
dc.contributor.author | Simpson, E. K. | |
dc.contributor.author | Bouchy, F. | |
dc.contributor.author | Brown, David John Alexander | |
dc.contributor.author | Chew, Y. Gomez Maqueo | |
dc.contributor.author | Cameron, Andrew Collier | |
dc.contributor.author | Armstrong, D. J. | |
dc.contributor.author | Barros, S. C. C. | |
dc.contributor.author | Bento, J. | |
dc.contributor.author | Bochinski, J. | |
dc.contributor.author | Burwitz, V. | |
dc.contributor.author | Busuttil, R. | |
dc.contributor.author | Delrez, L. | |
dc.contributor.author | Doyle, A. P. | |
dc.contributor.author | Faedi, F. | |
dc.contributor.author | Fumel, A. | |
dc.contributor.author | Gillon, M. | |
dc.contributor.author | Haswell, C. A. | |
dc.contributor.author | Hellier, C. | |
dc.contributor.author | Jehin, E. | |
dc.contributor.author | Kolb, U. | |
dc.contributor.author | Lendl, M. | |
dc.contributor.author | Liebig, Christine Elisabeth | |
dc.contributor.author | Maxted, P. F. L. | |
dc.contributor.author | McCormac, J. | |
dc.contributor.author | Miller, Grant | |
dc.contributor.author | Norton, A. J. | |
dc.contributor.author | Pepe, F. | |
dc.contributor.author | Queloz, D. | |
dc.contributor.author | Rodriguez, J. | |
dc.contributor.author | Segransan, D. | |
dc.contributor.author | Skillen, I. | |
dc.contributor.author | Smalley, B. | |
dc.contributor.author | Stassun, K. G. | |
dc.contributor.author | Udry, S. | |
dc.contributor.author | West, R. G. | |
dc.contributor.author | Wheatley, P. J. | |
dc.date.accessioned | 2015-09-15T10:10:08Z | |
dc.date.available | 2015-09-15T10:10:08Z | |
dc.date.issued | 2014-06-01 | |
dc.identifier | 134751894 | |
dc.identifier | 6a11b167-1e2a-4f2d-827e-ccfcc85b9384 | |
dc.identifier | 000336213800037 | |
dc.identifier | 84899870032 | |
dc.identifier | 000336213800037 | |
dc.identifier.citation | Brothwell , R D , Watson , C A , Hebrard , G , Triaud , A H M J , Cegla , H M , Santerne , A , Hebrard , E , Anderson , D R , Pollacco , D , Simpson , E K , Bouchy , F , Brown , D J A , Chew , Y G M , Cameron , A C , Armstrong , D J , Barros , S C C , Bento , J , Bochinski , J , Burwitz , V , Busuttil , R , Delrez , L , Doyle , A P , Faedi , F , Fumel , A , Gillon , M , Haswell , C A , Hellier , C , Jehin , E , Kolb , U , Lendl , M , Liebig , C E , Maxted , P F L , McCormac , J , Miller , G , Norton , A J , Pepe , F , Queloz , D , Rodriguez , J , Segransan , D , Skillen , I , Smalley , B , Stassun , K G , Udry , S , West , R G & Wheatley , P J 2014 , ' A window on exoplanet dynamical histories : Rossiter-McLaughlin observations of WASP-13b and WASP-32b ' , Monthly Notices of the Royal Astronomical Society , vol. 440 , no. 4 , pp. 3392-3401 . https://doi.org/10.1093/mnras/stu520 | en |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/58531360 | |
dc.identifier.uri | https://hdl.handle.net/10023/7461 | |
dc.description | RDB acknowledges support from the Queen's University Belfast Department for Education and Learning (DEL) university scholarship. CAW acknowledges support by STFC grant ST/I001123/1. A. H. M. J. Triaud is Swiss National Science Foundation fellow under grant number PBGEP2-145594. AS acknowledges the support from the European Research Council/European Community under the FP7 through Starting Grant agreement number 239953. | en |
dc.description.abstract | We present Rossiter-McLaughlin observations of WASP-13b and WASP-32b and determine the sky-projected angle between the normal of the planetary orbit and the stellar rotation axis (lambda). WASP-13b and WASP-32b both have prograde orbits and are consistent with alignment with measured sky-projected angles of λ = 8º+13-12 and λ = -2º+17-19, respectively. Both WASP-13 and WASP-32 have Teff <6250 K, and therefore, these systems support the general trend that aligned planetary systems are preferentially found orbiting cool host stars. A Lomb-Scargle periodogram analysis was carried out on archival SuperWASP data for both systems. A statistically significant stellar rotation period detection (above 99.9 per cent confidence) was identified for the WASP-32 system with Prot = 11.6 ± 1.0 days. This rotation period is in agreement with the predicted stellar rotation period calculated from the stellar radius, R*, and vsin i if a stellar inclination of i* = 90º is assumed. With the determined rotation period, the true 3D angle between the stellar rotation axis and the planetary orbit, ψ, was found to be ψ = 11º ± 14º. We conclude with a discussion on the alignment of systems around cool host stars with Teff <6150 K by calculating the tidal dissipation time-scale. We find that systems with short tidal dissipation time-scales are preferentially aligned and systems with long tidal dissipation time-scales have a broad range of obliquities. | |
dc.format.extent | 10 | |
dc.format.extent | 570927 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | en |
dc.subject | Techniques: photometric | en |
dc.subject | Techniques: radial velocities | en |
dc.subject | Stars: individual: WASP-13 | en |
dc.subject | Stars: individual: WASP-32 | en |
dc.subject | Planetary systems | en |
dc.subject | Spin-orbit Misalignment | en |
dc.subject | Transiting exoplanets | en |
dc.subject | Hot-Jupiter | en |
dc.subject | Host stars | en |
dc.subject | Rotation periods | en |
dc.subject | Polar orbit | en |
dc.subject | Time-series | en |
dc.subject | Spaced data | en |
dc.subject | Systems | en |
dc.subject | Planet | en |
dc.subject | QB Astronomy | en |
dc.subject.lcc | QB | en |
dc.title | A window on exoplanet dynamical histories : Rossiter-McLaughlin observations of WASP-13b and WASP-32b | en |
dc.type | Journal article | 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.identifier.doi | 10.1093/mnras/stu520 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | ST/J001651/1 | en |
dc.identifier.grantnumber | PP/F000065/1 | en |
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