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 dc.contributor.author Brown, D. J. A. dc.contributor.author Triaud, A. H. M. J. dc.contributor.author Doyle, A. P. dc.contributor.author Gillon, M. dc.contributor.author Lendl, M. dc.contributor.author Anderson, D. R. dc.contributor.author Collier Cameron, A. dc.contributor.author Hébrard, G. dc.contributor.author Hellier, C. dc.contributor.author Lovis, C. dc.contributor.author Maxted, P. F. L. dc.contributor.author Pepe, F. dc.contributor.author Pollacco, D. dc.contributor.author Queloz, D. dc.contributor.author Smalley, B. dc.date.accessioned 2016-11-10T12:30:16Z dc.date.available 2016-11-10T12:30:16Z dc.date.issued 2017-01-01 dc.identifier.citation Brown , D J A , Triaud , A H M J , Doyle , A P , Gillon , M , Lendl , M , Anderson , D R , Collier Cameron , A , Hébrard , G , Hellier , C , Lovis , C , Maxted , P F L , Pepe , F , Pollacco , D , Queloz , D & Smalley , B 2017 , ' Rossiter–McLaughlin models and their effect on estimates of stellar rotation, illustrated using six WASP systems ' , Monthly Notices of the Royal Astronomical Society , vol. 464 , no. 1 , pp. 810-839 . https://doi.org/10.1093/mnras/stw2316 en dc.identifier.issn 0035-8711 dc.identifier.other PURE: 247542880 dc.identifier.other PURE UUID: 36e83a5f-2bf6-48fd-aa46-cd67febf8597 dc.identifier.other RIS: urn:A55EE0C0C1BB1924E4CC7D1863FB0580 dc.identifier.other Scopus: 85013979508 dc.identifier.other ORCID: /0000-0002-8863-7828/work/58531466 dc.identifier.other WOS: 000393646300061 dc.identifier.uri http://hdl.handle.net/10023/9796 dc.description.abstract We present new measurements of the projected spin-orbit angle λ for six WASP hot Jupiters, four of which are new to the literature (WASP-61, -62, -76, and -78), and two of which are new analyses of previously measured systems using new data (WASP-71, and -79). We use three different models based on two different techniques: radial velocity measurements of the Rossiter–McLaughlin effect, and Doppler tomography. Our comparison of the different models reveals that they produce projected stellar rotation velocities (v sin Is) measurements often in disagreement with each other and with estimates obtained from spectral line broadening. The Boué model for the Rossiter–McLaughlin effect consistently underestimates the value of v sin Is compared to the Hirano model. Although v sin Is differed, the effect on λ was small for our sample, with all three methods producing values in agreement with each other. Using Doppler tomography, we find that WASP-61 b ($\lambda =4{^{\circ}_{.}}0^{+17.1}_{\,\,\,-18.4}$), WASP-71 b ($\lambda =-1{^{\circ}_{.}}9^{+7.1}_{\,\,\,-7.5}$), and WASP-78 b (λ = −6 $_{.}^{\circ}$4 ± 5.9) are aligned. WASP-62 b ($\lambda =19{^{\circ}_{.}}4^{+5.1}_{\,\,\,-4.9}$) is found to be slightly misaligned, while WASP-79 b ($\lambda =-95{^{\circ}_{.}}2^{+0.9}_{\,\,\,-1.0}$) is confirmed to be strongly misaligned and has a retrograde orbit. We explore a range of possibilities for the orbit of WASP-76 b, finding that the orbit is likely to be strongly misaligned in the positive λ direction. dc.format.extent 30 dc.language.iso eng dc.relation.ispartof Monthly Notices of the Royal Astronomical Society en dc.rights © 2016, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at mnras.oxfordjournals.org / https://doi.org/10.1093/mnras/stw2316 en dc.subject Techniques: photometric en dc.subject Techniques: radial velocities en dc.subject Techniques: spectroscopic en dc.subject Planetary systems en dc.subject Stars: rotation en dc.subject QB Astronomy en dc.subject QC Physics en dc.subject NDAS en dc.subject.lcc QB en dc.subject.lcc QC en dc.title Rossiter–McLaughlin models and their effect on estimates of stellar rotation, illustrated using six WASP systems en dc.type Journal article en dc.description.version Publisher PDF en dc.contributor.institution University of St Andrews.School of Physics and Astronomy en dc.identifier.doi https://doi.org/10.1093/mnras/stw2316 dc.description.status Peer reviewed en