Show simple item record

Files in this item


Item metadata

dc.contributor.authorLohr, M.E.
dc.contributor.authorNorton, A.J.
dc.contributor.authorAnderson, D.R.
dc.contributor.authorCollier Cameron, A.
dc.contributor.authorFaedi, F.
dc.contributor.authorHaswell, C.A.
dc.contributor.authorHellier, C.
dc.contributor.authorHodgkin, S.T.
dc.contributor.authorHorne, K.
dc.contributor.authorKolb, U.C.
dc.contributor.authorMaxted, P.F.L.
dc.contributor.authorPollacco, D.
dc.contributor.authorSkillen, I.
dc.contributor.authorSmalley, B.
dc.contributor.authorWest, R.G.
dc.contributor.authorWheatley, P.J.
dc.identifier.citationLohr , M E , Norton , A J , Anderson , D R , Collier Cameron , A , Faedi , F , Haswell , C A , Hellier , C , Hodgkin , S T , Horne , K , Kolb , U C , Maxted , P F L , Pollacco , D , Skillen , I , Smalley , B , West , R G & Wheatley , P J 2014 , ' Period and amplitude variations in post-common-envelope eclipsing binaries observed with SuperWASP ' , Astronomy & Astrophysics , vol. 566 , A128 .
dc.identifier.otherORCID: /0000-0002-8863-7828/work/58531464
dc.descriptionThe WASP project is currently funded and operated by Warwick University and Keele University, and was originally set up by Queen’s University Belfast, the Universities of Keele, St. Andrews and Leicester, the Open University, the Isaac Newton Group, the Instituto de Astrofisica de Canarias, the South African Astronomical Observatory and by STFC. This work was supported by the Science and Technology Funding Council and the Open University.en
dc.description.abstractPeriod or amplitude variations in eclipsing binaries may reveal the presence of additional massive bodies in the system, such as circumbinary planets. Here, we have studied twelve previously-known eclipsing post-common-envelope binaries for evidence of such light curve variations, on the basis of multi-year observations in the SuperWASP archive. The results for HW Vir provided strong evidence for period changes consistent with those measured by previous studies, and help support a two-planet model for the system. ASAS J102322-3737.0 exhibited plausible evidence for a period increase not previously suggested; while NY Vir, QS Vir and NSVS 14256825 afforded less significant support for period change, providing some confirmation to earlier claims. In other cases, period change was not convincingly observed; for AA Dor and NSVS 07826147, previous findings of constant period were confirmed. This study allows us to present hundreds of new primary eclipse timings for these systems, and further demonstrates the value of wide-field high-cadence surveys like SuperWASP for the investigation of variable stars.
dc.relation.ispartofAstronomy & Astrophysicsen
dc.subjectStars: variables: generalen
dc.subjectBinaries: closeen
dc.subjectBinaries: eclipsingen
dc.subjectQB Astronomyen
dc.titlePeriod and amplitude variations in post-common-envelope eclipsing binaries observed with SuperWASPen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record