J/A+A/639/A35ivo://CDS.VizieR/J/A+A/639/A35doi:10.26093/cds/vizier.36390035CDSHojjatpanah S.Oshagh M.Figueira P.Santos N.C.Amazo-gomez E.M.,Sousa S.G.Adibekyan V.Akinsanmi B.Demangeon O.Faria J.,Gomes Da Silva J.Meunier N.2023-01-11T14:01:18Z2020-11-20T08:44:34ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsradial-velocityapparent-magnitudeCharacterizing the relation between stellar photometric variability and radial velocity (RV) jitter can help us to better understand the physics behind these phenomena. The current and upcoming high precision photometric surveys such as TESS, CHEOPS, and PLATO will provide the community with thousands of new exoplanet candidates. As a consequence, the presence of such a correlation is crucial in selecting the targets with the lowest RV jitter for efficient RV follow-up of exoplanetary candidates. Studies of this type are also crucial to design optimized observational strategies to mitigate RV jitter when searching for Earth-mass exoplanets. Aims. Our goal is to assess the correlation between high-precision photometric variability measurements and high-precision RV jitter over different time scales. We analyze 171 G, K, and M stars with available TESS high precision photometric time-series and HARPS precise RVs. We derived the stellar parameters for the stars in our sample and measured the RV jitter and photometric variability. We also estimated chromospheric CaII H & K activity indicator log(R'_HK_), vsini, and the stellar rotational period. Finally, we evaluate how different stellar parameters and an RV sampling subset can have an impact on the potential correlations. We find a varying correlation between the photometric variability and RV jitter as function of time intervals between the TESS photometric observation and HARPS RV. As the time intervals of the observations considered for the analysis increases, the correlation value and significance becomes smaller and weaker, to the point that it becomes negligible. We also find that for stars with a photometric variability above 6.5 ppt the correlation is significantly stronger. We show that such a result can be due to the transition between the spot-dominated and the faculae-dominated regime. We quantified the correlations and updated the relationship between chromospheric CaII H & K activity indicator log(R'_HK_) and RV jitter.2020A&A...639A..35Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/639/A35CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/639/A35https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/639/A35http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/639/A35https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/639/A35https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/639/A35http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/639/A35GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/639/A35/tablec1 (Derived parameters for the stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/639/A35/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/639/A35/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/639/A35/tablec1?GETtext/xml+votable180.050000true53.9987464-44.51270310.005555555555555556Cone search capability for table J/A+A/639/A35/tablec2 (Stars in Fig. 14 with the peak-to-peak of light curve variation <6.5 ppt and some stellar parameters presents in TIC (Stassun et al., 2018, Cat. J/AJ/156/102))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/639/A35/tablec2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/639/A35/tablec2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/639/A35/tablec2?GETtext/xml+votable180.050000true349.6061822-19.82391580.0055555555555555566/2626 2725 2864 7508 7605 7632 7652 9960 10061 10097 10165 10182 10185 10223 10598 10608 11186 11239 11431 11451 11542 11602 11618 11620 11672 11678 11686 11692 11717 11747 11896 11925 11969 11980 11992 12056 12152 12190 12235 12270 13564 13611 13703 13892 14838 14924 15129 15131 15316 15327 15339 15547 15587 15782 15891 15916 15941 15956 15961 16012 16079 16097 16115 16162 16165 16258 16268 16393 16395 16405 16518-16519 16639 16768 17002 17072 17218 17253 17288 17297 17300 17312 17314 17541 17705 17870 17970 18005 20421 20476 20495 20575 20640 20692 20780 20896 21026 21114 21171 21176-21177 21206 21254 21259 21270 21412 21477 21484 21767 21809 21912 22001 22344 22351 22371 22619 22813 22816 22885-22886 22931 23033 23137 23178 23252 23460 23735 23780 24633 24729 25102 25132 25153 25194 25225 25267 25401 25538 25604 26647 26652 26751 26812 26840 26918 27142 27184 32795 32811 32813 32821 32833 32838 32872 32912 32918 32923 32959 32975 32979-32980 33004 33010 33029 33034 33049 33063 33073 33078 33086 33091 33112-33113 33124 33128 33133 33157 33160 33219 33241 33285 33428 33552 33571 33598 33629 33652 33662 33702 33705 33709 33719 33723 33782 33792 33798 33818 33824 33861 33874 33892 33914 33932 33943 33958 33984 33995 34005 34039 34073-34074 34173 34276 34342 34442 34448 34468 34471 34481 34581 34744 34817 34820 34836 34864 34896 34898 34937 34940 34949 34996 35018 35210 35456 35497 35564 35608 35668 35670 35858 35868 35896 35993 36025 36142 36191 36285 36365 36483 36492 36643 36664 36693 36746 36784 36902 36910 36972 37049 37094 37218 37383 37391 37393 37418 37422 37436 37449 37484 37486 37514 37516 37518 37572 37595 37654 37719 37751 37828 37925 37934 38055 38233 38315 38378 38386 38443 38464 38562 38615 38682 38698 38738 38742-38743 38752 38765 38917 38928 38934-38935 38946 38954 38957 38965 38977 38982 39007 39013 39042 39090 39110 39283 39329 39356 39377 39380 39463 39487 39500 39512 39542 39611 39693 39697 39938 40007 40078 40105 40129 40197 40220 40251 40532 40571 40741 40749 41013 41015 41179 41204 41255 41443 41463 41564 41612 41687 41755 41853 41954 42022 42054 42156 42212 42486 42595 42652 42769 43068 43180 43258 43287 43310 43315 43336 43378 43432 43567 43580 43625 43771 43781 43801 43845 43847 43865 45058 45097 45102 45121 45165 45169 45172 45265 45287 45334 45376 45378 45380 45420 45446 45482 45527 45539 45564 45589 45621 45668-45669 45837 45902 45907 45927 45993 46076 46109 46135 46193 46247 46287 46316 46333 46355 46383 46402 46429 46437 46487 46501 46549 46561 46603 46616 46640 46681 46685 46693 46734 46874 46933 46997 47184 47194 47205 47395 47504 47647 47718 47898 48018 48182 48251 48274 48310 48335https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/639/A35?format=asciidefaultJ/A+A/639/A35/tablec1Derived parameters for the starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIndex[1/171] Sequential numbermeta.recordintNameStar namemeta.id;meta.maincharTeffEffective temperatureKphys.temperature.effectivefloatSimbadSimbad column added by the CDSmeta.ref.urlchare_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintRV-RMSVelocity difference, RV-RMS, where RMS is the root-mean-square of RV time series (1)m/sphys.veloc;arith.difffloatppLCPeak-to-peak light curves, in ppt unitsrc.var.amplitudefloatvsiniRotational velocity (mean error: 1.0km/s)km/sstat.error;phys.veloc.rotatfloatlogR'HKMean logR'HK index (mean error: 0.01)phot.flux;arith.ratiofloatlogg? Surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullable[Fe/H]? Metallicityphys.abund.Zfloatnullablee_[Fe/H]? rms uncertainty on [Fe/H]stat.error;phys.abund.FefloatnullableProt? Rotational perioddtime.periodfloatnullablee_Prot? rms uncertainty on Protdstat.errorfloatnullableSampleSample(s) (2)src.samplechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/639/A35/tablec2Stars in Fig. 14 with the peak-to-peak of light curve variation <6.5 ppt and some stellar parameters presents in TIC (Stassun et al., 2018, Cat. J/AJ/156/102)SimbadSimbad column added by the CDSmeta.ref.urlchar_RApositions from TIC (right ascension part)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTICTIC identification numbermeta.idTOIFull TOI identification numbermeta.id;meta.mainfloatppLCPeak-to-peak light curve, in ppt unitsrc.var.amplitudefloatTmagTESS magnitudemagphot.mag;em.optfloatTeffEffective temperatureKphys.temperature.effectivefloate_Teff? rms uncertainty on TeffKstat.error;phys.temperature.effectivefloatnullableRstarRadiussolRadphys.size.radiusfloate_Rstar? rms uncertainty on RstarsolRadstat.errorfloatnullablelogg? Surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullable_DEpositions from TIC (declination part)degpos.eq.dec;meta.main