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Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems
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dc.contributor.author | Brown, David John Alexander | |
dc.contributor.author | Cameron, Andrew Collier | |
dc.contributor.author | Díaz, R. F. | |
dc.contributor.author | Doyle, A. P. | |
dc.contributor.author | Gillon, M. | |
dc.contributor.author | Lendl, M. | |
dc.contributor.author | Smalley, B. | |
dc.contributor.author | Triaud, A. H. M. J. | |
dc.contributor.author | Anderson, D. R. | |
dc.contributor.author | Enoch, Becky | |
dc.contributor.author | Hellier, C. | |
dc.contributor.author | Maxted, P. F. L. | |
dc.contributor.author | Miller, G. R. M. | |
dc.contributor.author | Pollacco, D. | |
dc.contributor.author | Queloz, D. | |
dc.contributor.author | Boisse, I. | |
dc.contributor.author | Hébrard, G. | |
dc.date.accessioned | 2016-02-05T12:40:09Z | |
dc.date.available | 2016-02-05T12:40:09Z | |
dc.date.issued | 2012-12-01 | |
dc.identifier | 240467901 | |
dc.identifier | e3640a96-5932-4222-ba89-fbfcea124597 | |
dc.identifier | 84870274087 | |
dc.identifier.citation | Brown , D J A , Cameron , A C , Díaz , R F , Doyle , A P , Gillon , M , Lendl , M , Smalley , B , Triaud , A H M J , Anderson , D R , Enoch , B , Hellier , C , Maxted , P F L , Miller , G R M , Pollacco , D , Queloz , D , Boisse , I & Hébrard , G 2012 , ' Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems ' , Astrophysical Journal , vol. 760 , no. 2 , pp. 139 . https://doi.org/10.1088/0004-637X/760/2/139 | en |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | BibCode: 2012ApJ...760..139B | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/58531430 | |
dc.identifier.uri | https://hdl.handle.net/10023/8143 | |
dc.description.abstract | We present measurements of the spin-orbit alignment angle, λ, for the hot Jupiter systems WASP-32, WASP-38, and HAT-P-27/WASP-40, based on data obtained using the HARPS spectrograph. We analyze the Rossiter-McLaughlin effect for all three systems and also carry out Doppler tomography for WASP-32 and WASP-38. We find that WASP-32 (T eff = 6140+90 - 100 K) is aligned, with an alignment angle of λ = 10fdg5 + 6.4 - 6.5 obtained through tomography, and that WASP-38 (T eff = 6180+40 - 60 K) is also aligned, with tomographic analysis yielding λ = 7fdg5 + 4.7 - 6.1. The latter result provides an order-of-magnitude improvement in the uncertainty in λ compared to the previous analysis of Simpson et al. We are only able to loosely constrain the angle for HAT-P-27/WASP-40 (T eff = 5190+160 - 170 K) to λ = 24fdg2 + 76.0 - 44.5, owing to the poor signal-to-noise ratio of our data. We consider this result a non-detection under a slightly updated version of the alignment test of Brown et al. We place our results in the context of the full sample of spin-orbit alignment measurements, finding that they provide further support for previously established trends. Based on observations (under proposal 087.C-0649) made using the HARPS High Resolution Échelle Spectrograph mounted on the ESO 3.6 m at the ESO La Silla observatory. | |
dc.format.extent | 957813 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astrophysical Journal | en |
dc.subject | Planets and satellites: dynamical evolution and stability | en |
dc.subject | Stars: individual: WASP-32 WASP-38 WASP-40 | en |
dc.subject | Techniques: radial velocities | en |
dc.subject | Techniques: spectroscopic | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Analysis of spin-orbit alignment in the WASP-32, WASP-38, and HAT-P-27/WASP-40 systems | 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 | https://doi.org/10.1088/0004-637X/760/2/139 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | http://adsabs.harvard.edu/abs/2012ApJ...760..139B | en |
dc.identifier.grantnumber | ST/J001651/1 | en |
dc.identifier.grantnumber | PP/F000065/1 | en |
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