J/AJ/163/183ivo://CDS.VizieR/J/AJ/163/183doi:10.26093/cds/vizier.51630183CDSBaum A.C.Wright J.T.Luhn J.K.Isaacson H.2022-10-27T11:35:35Z2022-05-17T07:35:53ZCDS support team

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

cds-question@unistra.frg-starsphotometryvisible-astronomystellar-agesstellar-masseseffective-temperatureWe present five decades of chromospheric activity measurements in 59 Sun-like stars as time series. These include and extend the 35yr of stellar chromospheric activity observations by the Mount Wilson Survey (1966-2001), and continued observations at Keck by the California Planet Search (1996-). The Mount Wilson Survey was studied closely in 1995, and revealed periodic activity cycles similar to the Sun's 11yr cycle. The California Planet Search provides more than five decades of measurements, significantly improving our understanding of these stars' activity behavior. We have curated the activity measurements in order to create contiguous time series, and have classified the stellar sample according to a predetermined system. We have analyzed 29 stars with periodic cycles using the Lomb-Scargle periodogram, and present best-fit sinusoids to their activity time series. We report the best-fit periods for each cycling star, along with stellar parameters (Teff, log(g), vsin(i), etc.) for the entire sample. As a first application of these data, we offer a possible Maunder minimum candidate, HD166620.2022AJ....163..183Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/163/183CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/simbad : Simbad objects catalogue (M.Wenger 2000)III/159 : Ca II H and K Measurements Made at MWO (Duncan+ 1991)J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)J/AJ/138/312 : Activity of bright solar analogs (Hall+, 2009)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/ApJS/225/32 : Extended abundance analysis of cool stars (Brewer+, 2016)J/ApJ/835/25 : Calibrated solar S-index time series (Egeland+, 2017)J/AJ/159/235 : Radial Velocity jitters in 600 planet host stars (Luhn+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/163/183https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/163/183http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/163/183https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/163/183https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/163/183http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/163/183GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/163/183/table2 (*Parameters and classifications of program stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/163/183/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/163/183/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/163/183/table2?GETtext/xml+votable180.050000true4.4952858-13.45564080.0055555555555555566/100 400 679 684 1341 1875 3639 3691 3979 5009 5304 6226 6308 7763 8466 9403 9476 9492 11412 12890 12944 14131 14419 14502 14525 15044 15154 15174 16069 16679 16883 17137 17218 17266 17425 17606 17812 18139 18614 20145 22157 22708 24028 24178 24924 25966 28180 28605 30529 30665 30878 31130 31478 31720 32757 36693 49114https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/163/183?format=asciiOpticaldefaultJ/AJ/163/183/table2*Parameters and classifications of program starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDStellar identifiermeta.id;meta.maincharprimarySvalue[0.13/0.46] Median S-value, excludes sigma-clipped valuesspect.indexfloatTeff[4937/6002] Effective temperature (1)Kphys.temperature.effectiveintlogg[3.46/4.61] log surface gravity (1)log(cm.s**-2)phys.gravityfloatvsini[0.1/9.6] Projected rotation velocity (1)km/sphys.veloc.rotatfloatFe/H[-0.73/0.35] log Metallicity (1)log(Sun)phys.abund.FefloatMass[0.69/6.37] Mass (1)solMassphys.massfloatAge[1.3/14.7] Age (1)Gyrtime.agefloatSpTypeSIMBAD spectral typesrc.spTypecharBase[24/54] Baseline (2)yrmeta.numberintCadence[1.77/86.6] Average number of observations /yearmeta.numberfloatClassB95Baliunas+ 1995ApJ...438..269B classification (3)meta.code.classcharClassTPThis paper's classification (4)meta.code.classcharNobsNumber of S-value for this star (table1)meta.numberintnullableS-valueInteractive Plotmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPosition from SIMBAD (right ascension part)degpos.eq.ra;meta.main_DEPosition from SIMBAD (declination part)degpos.eq.dec;meta.mainJ/AJ/163/183/table1Curated S-valuesFlagData flag (1)meta.code.errorcharHDStellar identifiermeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSvalue[0.1/0.88] S-valuespect.indexfloatTime[1966/2021] Fractional year of observationyrtime.epochdoubleindexedInstInstrument used; HIRES or HKPinstr.setupchar