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dc.contributor.authorJeffers, S. V.
dc.contributor.authorDreizler, S.
dc.contributor.authorBarnes, J. R.
dc.contributor.authorHaswell, C. A.
dc.contributor.authorNelson, R. P.
dc.contributor.authorRodríguez, E.
dc.contributor.authorLopez-Gonzalez, M. J.
dc.contributor.authorMorales, N.
dc.contributor.authorLuque, R.
dc.contributor.authorZechmeister, M.
dc.contributor.authorVogt, S. S.
dc.contributor.authorJenkins, J. S.
dc.contributor.authorPalle, E.
dc.contributor.authorBerdinas, Z. M.
dc.contributor.authorColeman, G. A. L.
dc.contributor.authorDiaz, M. R.
dc.contributor.authorRibas, I.
dc.contributor.authorJones, H. R. A.
dc.contributor.authorButler, R. P.
dc.contributor.authorTinney, C. G.
dc.contributor.authorBailey, J.
dc.contributor.authorCarter, B. D.
dc.contributor.author~O'Toole, S.
dc.contributor.authorWittenmyer, R. A.
dc.contributor.authorCrane, J. D.
dc.contributor.authorFeng, F.
dc.contributor.authorShectman, S. A.
dc.contributor.authorTeske, J.
dc.contributor.authorReiners, A.
dc.contributor.authorAmado, P. J.
dc.contributor.authorAnglada-Escude, G.
dc.contributor.author.
dc.date.accessioned2020-08-05T00:09:21Z
dc.date.available2020-08-05T00:09:21Z
dc.date.issued2020-06-26
dc.identifier.citationJeffers , S V , Dreizler , S , Barnes , J R , Haswell , C A , Nelson , R P , Rodríguez , E , Lopez-Gonzalez , M J , Morales , N , Luque , R , Zechmeister , M , Vogt , S S , Jenkins , J S , Palle , E , Berdinas , Z M , Coleman , G A L , Diaz , M R , Ribas , I , Jones , H R A , Butler , R P , Tinney , C G , Bailey , J , Carter , B D , ~O'Toole , S , Wittenmyer , R A , Crane , J D , Feng , F , Shectman , S A , Teske , J , Reiners , A , Amado , P J , Anglada-Escude , G & . 2020 , ' A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887 ' , Science , vol. 368 , no. 6498 , pp. 1477-1481 . https://doi.org/10.1126/science.aaz0795
dc.identifier.issn0036-8075
dc.identifier.otherArXiv: http://arxiv.org/abs/2006.16372v1
dc.identifier.otherORCID: /0000-0001-6039-0555/work/78467915
dc.identifier.urihttp://hdl.handle.net/2299/23037
dc.description© 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 26 Jun 2020: Vol. 368, Issue 6498, pp. 1477-1481. DOI: https://doi.org/10.1126/science.aaz0795.
dc.description.abstractThe closet exoplanets to the Sun provide opportunities for detailed characterization of planets outside the Solar System. We report the discovery, using radial velocity measurements, of a compact multiplanet system of super-Earth exoplanets orbiting the nearby red dwarf star GJ 887. The two planets have orbital periods of 9.3 and 21.8 days. Assuming an Earth-like albedo, the equilibrium temperature of the 21.8-day planet is ~350 kelvin. The planets are interior to, but close to the inner edge of, the liquid-water habitable zone. We also detect an unconfirmed signal with a period of ~50 days, which could correspond to a third super-Earth in a more temperate orbit. Our observations show that GJ 887 has photometric variability below 500 parts per million, which is unusually quiet for a red dwarf.en
dc.format.extent5
dc.format.extent3118231
dc.language.isoeng
dc.relation.ispartofScience
dc.subjectastro-ph.EP
dc.titleA multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionSchool of Creative Arts
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.contributor.institutionCentre of Data Innovation Research
dc.description.statusPeer reviewed
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85087138979&partnerID=8YFLogxK
rioxxterms.versionofrecord10.1126/science.aaz0795
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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