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The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegardens Star

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dc.affiliation.dptoUC3M. Departamento de Estadísticaes
dc.contributor.authorZechmeister, M.
dc.contributor.authorDreizler, S.
dc.contributor.authorRibas, I.
dc.contributor.authorReiners, A.
dc.contributor.authorCaballero, J.A.
dc.contributor.authorBauer, F.F.
dc.contributor.authorBejar, V.J.S.
dc.contributor.authorGonzalez-Cuesta, L.
dc.contributor.authorHerrero, E.
dc.contributor.authorLalitha, S.
dc.contributor.authorLoez-Gonzalez, M.J.
dc.contributor.authorLuque, R.
dc.contributor.authorMorales San-Juan, Juan Carlos
dc.contributor.authorPalle, E.
dc.contributor.authorRodriguez Senin, Elena
dc.contributor.authorRodriguez Lopez, C.
dc.contributor.authorTal Or, L.
dc.contributor.authorAnglada-Escude, G.
dc.contributor.authorQuirrenbach, A.
dc.contributor.authorAmado, P.J.
dc.contributor.authorAbril, M.
dc.contributor.authorAceituno, F.J.
dc.contributor.authorAceituno, J.
dc.contributor.authorAlonso-Floriano, F.J.
dc.contributor.authorAmmler-Von Eiff, M.
dc.contributor.authorAntona Jimenez, R.
dc.contributor.authorAnwarnd-Heerwart, H.
dc.contributor.authorArroyo-Torres, B.
dc.contributor.authorAzzaro, M.
dc.contributor.authorBaroch, D.
dc.contributor.authorBarrado Timon, Diego
dc.contributor.authorBecerril, S.
dc.contributor.authorBenitez, D.
dc.contributor.authorBerdiñas, Z.M.
dc.contributor.authorBergond, G.
dc.contributor.authorBluhm, P.
dc.contributor.authorBrinkmöller, M.
dc.contributor.authorBurgo, C. Del
dc.contributor.authorCalvo Ortega, R.
dc.contributor.authorCano, J.
dc.contributor.authorCardona Guillen, C.
dc.contributor.authorCarro, J.
dc.contributor.authorCarro, Jesús M.
dc.contributor.authorCardenas Vazquez, M.C.
dc.contributor.authorCasal, E.
dc.contributor.authorCasasayas-Barris, N.
dc.contributor.authorCasanova, V.
dc.contributor.authorChaturvedi, P.
dc.contributor.authorCifuentes Cuéllar, Sandra Carolina
dc.contributor.authorClaret, A.
dc.contributor.authorColome, J.
dc.contributor.authorCortes-Contreras, M.
dc.contributor.authorCsesla, S.
dc.contributor.authorDiez-Alonso, E.
dc.contributor.authorDorda, R.
dc.contributor.authorFernandez Gomez, Manuel
dc.contributor.authorFernandez-Martin, A.
dc.contributor.authorFuhrmeister, B.
dc.contributor.authorFukui, A.
dc.contributor.authorGaladi-Enriquez, D.
dc.contributor.authorGallardo Cava, I.
dc.contributor.authorGarcia De La Fuente, J.
dc.contributor.authorGarcia-Piquer, A.
dc.contributor.authorGarcia Vargas, M.L.
dc.contributor.authorGesa, L.
dc.contributor.authorGongora Rueda, J.
dc.contributor.authorGonzalez-Alvarez, E.
dc.contributor.authorGonzalez Hernandez, J.I.
dc.contributor.authorGonzalez-Peinado, R.
dc.contributor.authorGrözinger, U.
dc.contributor.authorGuardia, J.
dc.contributor.authorGuijarro, A.
dc.contributor.authorGuindos, E. De
dc.contributor.authorHatzes, Ap.
dc.contributor.authorHauschildt, P.H.
dc.contributor.authorHedrosa, R.P.
dc.contributor.authorHelmling, J.
dc.contributor.authorTappe, Henning
dc.contributor.authorHermelo, I.
dc.contributor.authorHernandez Arabi, R.
dc.contributor.authorHernandez Castaño, L.
dc.contributor.authorHernandez Otero, F.
dc.contributor.authorHintz, D.
dc.contributor.authorHuke, P.
dc.contributor.authorHuber, A.
dc.contributor.authorJeffers, S.V.
dc.contributor.authorJohnson, E.N.
dc.contributor.authorJuan, E. De
dc.contributor.authorKaminski, A.
dc.contributor.authorKemmer, J.
dc.contributor.authorKim, M.
dc.contributor.authorKlahr, H.
dc.contributor.authorKlein, R.
dc.contributor.authorKlüter, J.
dc.contributor.authorKlutsch, A.
dc.contributor.authorKossakowski, D.
dc.contributor.authorKüster, M.
dc.contributor.authorLabarga, F.
dc.contributor.authorLlama, M.
dc.contributor.authorLampon, M.
dc.contributor.authorLara, L.M.
dc.contributor.authorLaunhardt, R.
dc.contributor.authorLazaro, F.J.
dc.contributor.authorLodieu, N.
dc.contributor.authorLopez del Fresno, M.
dc.contributor.authorLopez-Puertas, M.
dc.contributor.authorLopez Salas, J.F.
dc.contributor.authorLópez Santiago, Javier
dc.contributor.authorMagan Madinabeitia, H.
dc.contributor.authorMall, U.
dc.contributor.authorMancini, L.
dc.contributor.authorMandel, H.
dc.contributor.authorMarfil, E.
dc.contributor.authorMarin Molina, J.A.
dc.contributor.authorMaroto Fernandez, D.
dc.contributor.authorMartin, E.L.
dc.contributor.authorMartin-Fernandez, P.
dc.contributor.authorMartin-Ruiz, S.
dc.contributor.authorMarvin, C.J.
dc.contributor.authorMirabet, E.
dc.contributor.authorOfir, A.
dc.contributor.authorOshagh, M.
dc.contributor.authorMonañez-Rodriguez, P.
dc.contributor.authorMontes, D.
dc.contributor.authorMoreno-Raya, M.E.
dc.contributor.authorNagel, E.
dc.contributor.authorNaranjo, V.
dc.contributor.authorNarita, N.
dc.contributor.authorNortmann, L.
dc.contributor.authorNowak, G.
dc.contributor.authorPanduro, J.
dc.contributor.authorParviainen, H.
dc.contributor.authorPascual Casado, Javier
dc.contributor.authorPassegger, V.M.
dc.contributor.authorPavlov, A.
dc.contributor.authorPedraz, S.
dc.contributor.authorPerez-Calpena, A.
dc.contributor.authorPerez Medialdea, D.
dc.contributor.authorPerger, M.
dc.contributor.authorPerryman, M.A.C.
dc.contributor.authorRabaza, O.
dc.contributor.authorRamon Ballesta, A.
dc.contributor.authorRebolo Gomez, Rafael
dc.contributor.authorSanchez Blanco, Emilio Jose
dc.contributor.authorSanchez Carrasco, M.A.
dc.contributor.authorSanchez Lopez, Alexis
dc.contributor.authorSanz-Forcada, J.
dc.contributor.authorSarkis, P.
dc.contributor.authorSarmiento, L.F.
dc.contributor.authorSchafer, S.
dc.contributor.authorSchmitt, J.H.M.M.
dc.contributor.authorSchöfer, P.
dc.contributor.authorSchweitzer, A.
dc.contributor.authorSeifert, W.
dc.contributor.authorShulyak, D.
dc.contributor.authorSolano, E.
dc.contributor.authorSota, A.
dc.contributor.authorStock, O.
dc.contributor.authorStrachan, J.B.P.
dc.contributor.authorStuber, T.
dc.contributor.authorStürmer, J.
dc.contributor.authorSuarez, J.C.
dc.contributor.authorTabernero, H.M.
dc.contributor.authorTala Pinto, M.
dc.contributor.authorTrifonov, T.
dc.contributor.authorVeredas, G.
dc.contributor.authorVico Linares, J.I.
dc.contributor.authorVilardell, F.
dc.contributor.authorWagner, K
dc.contributor.authorWolthoff, V.
dc.contributor.authorXu, W.
dc.contributor.authorYan, F.
dc.contributor.authorZapatero Osorio, M.R.
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2022-06-01T17:34:42Z
dc.date.available2022-06-01T17:34:42Z
dc.date.issued2019-07-01
dc.description.abstractContext. Teegarden’s Star is the brightest and one of the nearest ultra-cool dwarfs in the solar neighbourhood. For its late spectral type (M7.0 V), the star shows relatively little activity and is a prime target for near-infrared radial velocity surveys such as CARMENES. Aims. As part of the CARMENES search for exoplanets around M dwarfs, we obtained more than 200 radial-velocity measurements of Teegarden’s Star and analysed them for planetary signals. Methods. We find periodic variability in the radial velocities of Teegarden’s Star. We also studied photometric measurements to rule out stellar brightness variations mimicking planetary signals. Results. We find evidence for two planet candidates, each with 1.1 M⊕ minimum mass, orbiting at periods of 4.91 and 11.4 d, respectively. No evidence for planetary transits could be found in archival and follow-up photometry. Small photometric variability is suggestive of slow rotation and old age. Conclusions. The two planets are among the lowest-mass planets discovered so far, and they are the first Earth-mass planets around an ultra-cool dwarf for which the masses have been determined using radial velocities.en
dc.description.sponsorshipWe acknowledge financial support from the Spanish Agencia Estatal de Investigación of the Ministerio de Ciencia, Innovación y Universidades and the European FEDER/ERF funds through projects AYA2015-69350-C3-2-P, AYA2016-79425-C3-1/2/3-P, AYA2018-84089, BES-2017-080769, BES-2017-082610, ESP2015-65712-C5-5-R, ESP2016-80435-C2-1/2-R, ESP2017-87143-R, ESP2017-87676-2-2, ESP2017-87676-C5-1/2/5-R, FPU15/01476, RYC-2012-09913, the Centre of Excellence “Severo Ochoa” and “María de Maeztu” awards to the Instituto de Astrofísicade Canarias (SEV-2015-0548), Instituto de Astrofísica de Andalucía (SEV-2017-0709), and Centro de Astrobiología (MDM-2017-0737), the Generalitat de Catalunya through CERCA programme”, the Deutsches Zentrum für Luft- und Raumfahrt through grants 50OW0204 and 50OO1501, the European Research Council through grant 6 94 513, theItalian Ministero dell’instruzione, dell’università de della ricerca and Università degli Studi di Roma Tor Vergata through FFABR 2017 and “Mission: Sustainability 2016”, the UK Science and Technology Facilities Council through grant ST/P000592/1, the Israel Science Foundation through grant 848/16, the Chilean CONICYT-FONDECYT through grant 31 80 405, the Mexican CONACYT through grant CVU 4 48 248, the JSPS KAKENHI through grants JP18H01265 and 18H05439, and the JST PRESTO through grant JPMJPR1775.es
dc.identifier.bibliographicCitationZechmeister, M., Dreizler, S., Ribas, I., Reiners, A., Caballero, J. A., Bauer, F. F., Béjar, V. J. S., González-Cuesta, L., Herrero, E., Lalitha, S., López-González, M. J., Luque, R., Morales, J. C., Pallé, E., Rodríguez, E., Rodríguez López, C., Tal-Or, L., Anglada-Escudé, G., Quirrenbach, A., … Zapatero Osorio, M. R. (2019). The CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegarden’s Star. Astronomy &Astrophysics, 627, p. A49.es
dc.identifier.doihttps://doi.org/10.1051/0004-6361/201935460
dc.identifier.issn0004-6361
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissueA49es
dc.identifier.publicationlastpage14es
dc.identifier.publicationtitleASTRONOMY & ASTROPHYSICSes
dc.identifier.publicationvolume627es
dc.identifier.urihttps://hdl.handle.net/10016/34973
dc.identifier.uxxiAR/0000024975
dc.language.isoenges
dc.publisherEDP Scienceses
dc.relation.projectIDGobierno de España. AYA2015-69350-C3-2-Pes
dc.relation.projectIDGobierno de España. AYA2016-79425-C3-1/2/3-Pes
dc.relation.projectIDGobierno de España. ESP2015-65712-C5-5-Res
dc.relation.projectIDGobierno de España. ESP2017-87143-Res
dc.relation.projectIDGobierno de España. ESP2017-87676-2-2es
dc.relation.projectIDGobierno de España. ESP2017-87676-C5-1/2/5-Res
dc.relation.projectIDGobierno de España. SEV-2015-0548es
dc.rights© ESO 2019es
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.otherMethods: data analysises
dc.subject.otherPlanetary systemses
dc.subject.otherStars: individual: Teegarden’s Stares
dc.subject.otherStars: late-typeen
dc.titleThe CARMENES search for exoplanets around M dwarfs. Two temperate Earth-mass planet candidates around Teegardens Staren
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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