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The EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limit
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dc.contributor.author | Von Boetticher, Alexander | |
dc.contributor.author | Triaud, Amaury H.M.J. | |
dc.contributor.author | Queloz, DIdier | |
dc.contributor.author | Gill, Sam | |
dc.contributor.author | Lendl, Monika | |
dc.contributor.author | Delrez, Laetitia | |
dc.contributor.author | Anderson, David R. | |
dc.contributor.author | Cameron, Andrew Collier | |
dc.contributor.author | Faedi, Francesca | |
dc.contributor.author | Gillon, Michaël | |
dc.contributor.author | Chew, Yilen Gómez Maqueo | |
dc.contributor.author | Hebb, Leslie | |
dc.contributor.author | Hellier, Coel | |
dc.contributor.author | Jehin, Emmanuël | |
dc.contributor.author | Maxted, Pierre F.L. | |
dc.contributor.author | Martin, David V. | |
dc.contributor.author | Pepe, Francesco | |
dc.contributor.author | Pollacco, Don | |
dc.contributor.author | Ségransan, Damien | |
dc.contributor.author | Smalley, Barry | |
dc.contributor.author | Udry, Stéphane | |
dc.contributor.author | West, Richard | |
dc.date.accessioned | 2017-10-30T11:30:06Z | |
dc.date.available | 2017-10-30T11:30:06Z | |
dc.date.issued | 2017-08-01 | |
dc.identifier | 250869609 | |
dc.identifier | 8d06bb36-aef0-4b5f-8aca-3737133d9213 | |
dc.identifier | 85026827651 | |
dc.identifier | 000408480100133 | |
dc.identifier.citation | Von 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/10.1051/0004-6361/201731107 | en |
dc.identifier.issn | 0004-6361 | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/58531452 | |
dc.identifier.uri | https://hdl.handle.net/10023/11943 | |
dc.description | This work was partially supported by a grant from the Simons Foundation (PI Queloz, grant number 327127). | en |
dc.description.abstract | We 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.extent | 6 | |
dc.format.extent | 703748 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astronomy & Astrophysics | en |
dc.subject | Binaries: eclipsing | en |
dc.subject | Binaries: spectroscopic | en |
dc.subject | Stars: individual: EBLM J0555-57Ab | en |
dc.subject | Stars: low-mass | en |
dc.subject | Techniques: photometric | en |
dc.subject | Techniques: spectroscopic | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | Astronomy and Astrophysics | en |
dc.subject | Space and Planetary Science | en |
dc.subject | DAS | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | The EBLM project : III. A Saturn-size low-mass star at the hydrogen-burning limit | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | 10.1051/0004-6361/201731107 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/1706.08781 | en |
dc.identifier.grantnumber | ST/M001296/1 | en |
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