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dc.contributor.authorSwayne, M I
dc.contributor.authorMaxted, P F L
dc.contributor.authorTriaud, A H M J
dc.contributor.authorSousa, S G
dc.contributor.authorBroeg, C
dc.contributor.authorFlorén, H-G
dc.contributor.authorGuterman, P
dc.contributor.authorSimon, A E
dc.contributor.authorBoisse, I
dc.contributor.authorBonfanti, A
dc.contributor.authorMartin, D
dc.contributor.authorSanterne, A
dc.contributor.authorSalmon, S
dc.contributor.authorStanding, M R
dc.contributor.authorVan Grootel, V
dc.contributor.authorWilson, T G
dc.contributor.authorAlibert, Y
dc.contributor.authorAlonso, R
dc.contributor.authorAnglada Escudé, G
dc.contributor.authorAsquier, J
dc.contributor.authorBárczy, T
dc.contributor.authorBarrado, D
dc.contributor.authorBarros, S C C
dc.contributor.authorBattley, M
dc.contributor.authorBaumjohann, W
dc.contributor.authorBeck, M
dc.contributor.authorBeck, T
dc.contributor.authorBekkelien, A
dc.contributor.authorBenz, W
dc.contributor.authorBillot, N
dc.contributor.authorBonfils, X
dc.contributor.authorBrandeker, A
dc.contributor.authorBusch, M-D
dc.contributor.authorCabrera, J
dc.contributor.authorCharnoz, S
dc.contributor.authorCollier Cameron, A
dc.contributor.authorCsizmadia, Sz
dc.contributor.authorDavies, M B
dc.contributor.authorDeleuil, M
dc.contributor.authorDeline, A
dc.contributor.authorDelrez, L
dc.contributor.authorDemangeon, O D S
dc.contributor.authorDemory, B-O
dc.contributor.authorDransfield, G
dc.contributor.authorEhrenreich, D
dc.contributor.authorErikson, A
dc.contributor.authorFortier, A
dc.contributor.authorFossati, L
dc.contributor.authorFridlund, M
dc.contributor.authorFutyan, D
dc.contributor.authorGandolfi, D
dc.contributor.authorGillon, M
dc.contributor.authorGuedel, M
dc.contributor.authorHébrard, G
dc.contributor.authorHeidari, N
dc.contributor.authorHellier, C
dc.contributor.authorHeng, K
dc.contributor.authorHobson, M
dc.contributor.authorHoyer, S
dc.contributor.authorIsaak, K G
dc.contributor.authorKiss, L
dc.contributor.authorKunovac Hodžić, V
dc.contributor.authorLalitha, S
dc.contributor.authorLaskar, J
dc.contributor.authorLecavelier des Etangs, A
dc.contributor.authorLendl, M
dc.contributor.authorLovis, C
dc.contributor.authorMagrin, D
dc.contributor.authorMarafatto, L
dc.contributor.authorMcCormac, J
dc.contributor.authorMiller, N
dc.contributor.authorNascimbeni, V
dc.contributor.authorOlofsson, G
dc.contributor.authorOttensamer, R
dc.contributor.authorPagano, I
dc.contributor.authorPallé, E
dc.contributor.authorPeter, G
dc.contributor.authorPiotto, G
dc.contributor.authorPollacco, D
dc.contributor.authorQueloz, D
dc.contributor.authorRagazzoni, R
dc.contributor.authorRando, N
dc.contributor.authorRauer, H
dc.contributor.authorRibas, I
dc.contributor.authorSantos, N C
dc.contributor.authorScandariato, G
dc.contributor.authorSégransan, D
dc.contributor.authorSmith, A M S
dc.contributor.authorSteinberger, M
dc.contributor.authorSteller, M
dc.contributor.authorSzabó, Gy M
dc.contributor.authorThomas, N
dc.contributor.authorUdry, S
dc.contributor.authorWalter, I
dc.contributor.authorWalton, N A
dc.contributor.authorWillett, E
dc.identifier.citationSwayne , M I , Maxted , P F L , Triaud , A H M J , Sousa , S G , Broeg , C , Florén , H-G , Guterman , P , Simon , A E , Boisse , I , Bonfanti , A , Martin , D , Santerne , A , Salmon , S , Standing , M R , Van Grootel , V , Wilson , T G , Alibert , Y , Alonso , R , Anglada Escudé , G , Asquier , J , Bárczy , T , Barrado , D , Barros , S C C , Battley , M , Baumjohann , W , Beck , M , Beck , T , Bekkelien , A , Benz , W , Billot , N , Bonfils , X , Brandeker , A , Busch , M-D , Cabrera , J , Charnoz , S , Collier Cameron , A , Csizmadia , S , Davies , M B , Deleuil , M , Deline , A , Delrez , L , Demangeon , O D S , Demory , B-O , Dransfield , G , Ehrenreich , D , Erikson , A , Fortier , A , Fossati , L , Fridlund , M , Futyan , D , Gandolfi , D , Gillon , M , Guedel , M , Hébrard , G , Heidari , N , Hellier , C , Heng , K , Hobson , M , Hoyer , S , Isaak , K G , Kiss , L , Kunovac Hodžić , V , Lalitha , S , Laskar , J , Lecavelier des Etangs , A , Lendl , M , Lovis , C , Magrin , D , Marafatto , L , McCormac , J , Miller , N , Nascimbeni , V , Olofsson , G , Ottensamer , R , Pagano , I , Pallé , E , Peter , G , Piotto , G , Pollacco , D , Queloz , D , Ragazzoni , R , Rando , N , Rauer , H , Ribas , I , Santos , N C , Scandariato , G , Ségransan , D , Smith , A M S , Steinberger , M , Steller , M , Szabó , G M , Thomas , N , Udry , S , Walter , I , Walton , N A & Willett , E 2021 , ' The EBLM project – VIII. First results for M-dwarf mass, radius, and effective temperature measurements using CHEOPS light curves ' , Monthly Notices of the Royal Astronomical Society , vol. 506 , no. 1 , pp. 306-322 .
dc.identifier.otherPURE: 276087285
dc.identifier.otherPURE UUID: 42fd855a-4e37-4b21-8ef5-37bd1fecebb7
dc.identifier.otherJisc: 874ed999c55c4830a1075cf00ee1c9e4
dc.identifier.otherORCID: /0000-0002-8863-7828/work/100900997
dc.identifier.otherORCID: /0000-0001-8749-1962/work/100901707
dc.identifier.otherWOS: 000703918800019
dc.identifier.otherScopus: 85116651933
dc.descriptionFunding: MIS and PFLM are supported by the UK Science and Technology Facilities Council (STFC) grant numbers ST/M001040/1 and ST/T506175/1. This research is supported from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 803193/BEBOP), by a Leverhulme Trust Research Project Grant No. (RPG-2018-418)ACC and TW acknowledge support from STFC consolidated grant no. ST/M001296/1.en
dc.description.abstractThe accuracy of theoretical mass, radius, and effective temperature values for M-dwarf stars is an active topic of debate. Differences between observed and theoretical values have raised the possibility that current theoretical stellar structure and evolution models are inaccurate towards the low-mass end of the main sequence. To explore this issue, we use the CHEOPS satellite to obtain high-precision light curves of eclipsing binaries with low-mass stellar companions. We use these light curves combined with the spectroscopic orbit for the solar-type companion to measure the mass, radius, and effective temperature of the M-dwarf star. Here, we present the analysis of three eclipsing binaries. We use the pycheops data analysis software to fit the observed transit and eclipse events of each system. Two of our systems were also observed by the TESS satellite – we similarly analyse these light curves for comparison. We find consistent results between CHEOPS and TESS, presenting three stellar radii and two stellar effective temperature values of low-mass stellar objects. These initial results from our on-going observing programme with CHEOPS show that we can expect to have ∼24 new mass, radius, and effective temperature measurements for very low-mass stars within the next few years.
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rightsCopyright 2021 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at
dc.subjectTechniques: photometricen
dc.subjectTechniques: spectroscopicen
dc.subjectBinaries: eclipsingen
dc.subjectStars: fundamental parametersen
dc.subjectStars: low-massen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleThe EBLM project – VIII. First results for M-dwarf mass, radius, and effective temperature measurements using CHEOPS light curvesen
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.description.statusPeer revieweden

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