J/A+A/677/A182ivo://CDS.VizieR/J/A+A/677/A182doi:10.26093/cds/vizier.36770182CDSMurgas F.Castro-Gonzalez A.Palle E.Pozuelos F.J.Millholland S.,Foo O.Korth J.Marfil E.Amado P.J.Caballero J.A.Christiansen J.L.,Ciardi D.R.Collins K.A.Di Sora M.Fukui A.Gan T.Gonzales E.J.,Henning T.Herrero E.Isopi G.Jenkins J.M.Lillo-Box J.Lodieu N.,Luque R.Mallia F.Morales J.C.Morello G.Narita N.Orell-Miquel J.,Parviainen H.Perez-Torres M.Quirrenbach A.Reiners A.Ribas I.,Safonov B.S.Seager S.Schwarz R.P.Schweitzer A.Schlecker M.,Strakhov I.A.Vanaverbeke S.Watanabe N.Winn J.N.Zechmeister M.2025-02-06T20:00:58Z2023-09-27T07:51:47ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frmultiple-starsexoplanetsm-starsradial-velocityvisible-astronomyThe main scientific goal of TESS is to find planets smaller than Neptune around stars that are bright enough to allow for further characterization studies. Given our current instrumentation and detection biases, M dwarfs are prime targets in the search for small planets that are in (or near) the habitable zone of their host star. In this work, we use photometric observations and CARMENES radial velocity measurements to validate a pair of transiting planet candidates found by TESS. The data were fitted simultaneously, using a Bayesian Markov chain Monte Carlo (MCMC) procedure and taking into account the stellar variability present in the photometric and spectroscopic time series. We confirm the planetary origin of the two transiting candidates orbiting around TOI-2095 (LSPM J1902+7525). The star is a nearby M dwarf (d=41.90+/-0.03pc, Teff=3759+/-87K, V=12.6mag), with a stellar mass and radius of M*=0.44+/-0.02M_{sun}_ and R*=0.44+/-0.02R_{sun}_, respectively. The planetary system is composed of two transiting planets: TOI-2095b, with an orbital period of Pb=17.66484+/-(7x10^-5^) days, and TOI-2095c, with Pc=28.17232+/-(14x10^-5^) days. Both planets have similar sizes with Rb=1.25+/-0.07R_{Earth}_ and Rc=1.33+/-0.08R_{Earth}_ for planet b and planet c, respectively. Although we did not detect the induced RV variations of any planet with significance, our CARMENES data allow us to set stringent upper limits on the masses of these objects. We find Mb<4.1M_{Earth}_ for the inner and Mc<7.4M_{Earth}_ for the outer planet (95% confidence level). These two planets present equilibrium temperatures in the range of 300-350K and are close to the inner edge of the habitable zone of their star.2023A&A...677A.182Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/677/A182CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/677/A182https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/677/A182http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/677/A182https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/677/A182https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/677/A182http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/677/A182GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/677/A182/tablec1CARMENES visual channel (VIS) radial velocity measurements of TOI-2095 computed by SERVALrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian date (TDB)dtime.epochdoubleRVRadial velocity (VIS channel)m/sphys.veloc;pos.heliocentricfloate_RVRadial velocity error (VIS channel)m/sstat.errorfloatJ/A+A/677/A182/tablec2CARMENES spectroscopic line activity indicators for TOI-2095 computed by SERVALBJDBarycentric Julian date (TDB)dtime.epochdoubleCRXChromatic index (in m/s/Np)spect.indexfloate_CRXChromatic index uncertainty(in m/s/Np)stat.errorfloatdLWDifferential line widthm**2.s**-2spect.line.widthfloate_dLWDifferential line width uncertaintym**2.s**-2stat.errorfloatHalphaH{alpha} indexm/sspect.indexfloate_HalphaH{alpha} index uncertaintym/sstat.error;spect.linefloatNaD1Na D1 indexm/sspect.indexfloate_NaD1Na D1 index uncertaintym/sstat.errorfloatNaD2Na D2 indexm/sspect.indexfloate_NaD2Na D2 index uncertaintym/sstat.errorfloatCaIRT1Ca IRT 1 indexm/sspect.indexfloate_CaIRT1Ca IRT 1 index uncertaintym/sstat.errorfloatCaIRT2Ca IRT 2 indexm/sspect.indexfloate_CaIRT2Ca IRT 2 index uncertaintym/sstat.errorfloatCaIRT3Ca IRT 3 indexm/sspect.indexfloate_CaIRT3Ca IRT 3 index uncertaintym/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJ/A+A/677/A182/tablec3CARMENES activity indicators from cross-correlation for TOI-2095 computed by raccoonContCCF contrast%stat.fit.paramfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian date (TDB)dtime.epochdoubleFWHMCCF Full width at half maximumkm/sspect.line.widthfloate_FWHMCCF Full width at half maximum uncertaintykm/sstat.error;phys.angSizefloate_ContCCF contrast uncertainty%stat.errorfloatBISCCF Bisectorkm/sphys.velocfloate_BISCCF Bisectorkm/sstat.errorfloat