Show simple item record

Files in this item

Thumbnail

Item metadata

dc.contributor.authorVon Boetticher, Alexander
dc.contributor.authorTriaud, Amaury H.M.J.
dc.contributor.authorQueloz, DIdier
dc.contributor.authorGill, Sam
dc.contributor.authorLendl, Monika
dc.contributor.authorDelrez, Laetitia
dc.contributor.authorAnderson, David R.
dc.contributor.authorCameron, Andrew Collier
dc.contributor.authorFaedi, Francesca
dc.contributor.authorGillon, Michaël
dc.contributor.authorChew, Yilen Gómez Maqueo
dc.contributor.authorHebb, Leslie
dc.contributor.authorHellier, Coel
dc.contributor.authorJehin, Emmanuël
dc.contributor.authorMaxted, Pierre F.L.
dc.contributor.authorMartin, David V.
dc.contributor.authorPepe, Francesco
dc.contributor.authorPollacco, Don
dc.contributor.authorSégransan, Damien
dc.contributor.authorSmalley, Barry
dc.contributor.authorUdry, Stéphane
dc.contributor.authorWest, Richard
dc.date.accessioned2017-10-30T11:30:06Z
dc.date.available2017-10-30T11:30:06Z
dc.date.issued2017-08-01
dc.identifier.citationVon Boetticher , A , Triaud , A H M J , Queloz , DI , Gill , S , Lendl , M , Delrez , L , Anderson , D R , Cameron , A C , Faedi , F , Gillon , M , Chew , Y G M , Hebb , L , Hellier , C , Jehin , E , Maxted , P F L , Martin , D V , Pepe , F , Pollacco , D , Ségransan , D , Smalley , B , Udry , S & West , R 2017 , ' The EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limit ' , Astronomy & Astrophysics , vol. 604 , L6 . https://doi.org/10.1051/0004-6361/201731107en
dc.identifier.issn0004-6361
dc.identifier.otherPURE: 250869609
dc.identifier.otherPURE UUID: 8d06bb36-aef0-4b5f-8aca-3737133d9213
dc.identifier.otherScopus: 85026827651
dc.identifier.otherORCID: /0000-0002-8863-7828/work/58531452
dc.identifier.otherWOS: 000408480100133
dc.identifier.urihttps://hdl.handle.net/10023/11943
dc.descriptionThis work was partially supported by a grant from the Simons Foundation (PI Queloz, grant number 327127).en
dc.description.abstractWe report the discovery of an eclipsing binary system with mass-ratio q ∼ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light curves with the Euler and TRAPPIST telescopes. From a joint fit of these data we determine that EBLM J0555-57 consists of a sun-like primary star that is eclipsed by a low-mass companion, on a weakly eccentric 7.8-day orbit. Using a mass estimate for the primary star derived from stellar models, we determine a companion mass of 85 ± 4 MJup (0.081 M⊙) and a radius of 0.84+ 0.14 -0.04RJup (0.084 R⊙) that is comparable to that of Saturn. EBLM J0555-57Ab has a surface gravity log g2 =5.50+ 0.03 -0.13 and is one of the densest non-stellar-remnant objects currently known. These measurements are consistent with models of low-mass stars.
dc.format.extent6
dc.language.isoeng
dc.relation.ispartofAstronomy & Astrophysicsen
dc.rights© ESO, 2017. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1051/0004-6361/201731107en
dc.subjectBinaries: eclipsingen
dc.subjectBinaries: spectroscopicen
dc.subjectStars: individual: EBLM J0555-57Aben
dc.subjectStars: low-massen
dc.subjectTechniques: photometricen
dc.subjectTechniques: spectroscopicen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectAstronomy and Astrophysicsen
dc.subjectSpace and Planetary Scienceen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleThe EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limiten
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doihttps://doi.org/10.1051/0004-6361/201731107
dc.description.statusPeer revieweden
dc.identifier.urlhttps://arxiv.org/abs/1706.08781en
dc.identifier.grantnumberST/M001296/1en


This item appears in the following Collection(s)

Show simple item record