J/ApJ/727/117ivo://CDS.VizieR/J/ApJ/727/117doi:10.26093/cds/vizier.17270117CDSMeschiari S.Laughlin G.Vogt S.S.Butler R.P.Rivera E.J.,Haghighipour N.Jalowiczor P.2017-11-06T12:24:11Z2012-10-10T13:08:06ZCDS support team

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

cds-question@unistra.frradial-velocitymultiple-starssolar-system-planetsWe present new precise HIRES radial velocity (RV) data sets of five nearby stars obtained at Keck Observatory. HD 31253, HD 218566, HD 177830, HD 99492, and HD 74156 are host stars of spectral classes F through K and show RV variations consistent with new or additional planetary companions in Keplerian motion. The orbital parameters of the candidate planets in the five planetary systems span minimum masses of Msini=27.43M_{sun}_ to 8.28M_J_, periods of 17.05-4696.95 days and eccentricities ranging from circular to extremely eccentric (e~0.63). The fifth star, HD 74156, was known to have both a 52 day and a 2500 day planet, and was claimed to also harbor a third planet at 336 days, in apparent support of the "Packed Planetary System" hypothesis. Our greatly expanded data set for HD 74156 provides strong confirmation of both the 52 day and 2500 day planets, but strongly contradicts the existence of a 336 day planet, and offers no significant evidence for any other planets in the system.2011ApJ...727..117Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/727/117CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/130 : Geneva-Copenhagen Survey of Solar neighbourhood III (Holmberg+, 2009)J/ApJ/719/890 : Keck radial velocities of GJ 876 (Rivera+, 2010)J/ApJ/723/954 : HIRES radial velocities of GJ 581 (Vogt+, 2010)J/ApJ/705/1226 : Planet-bearing stars in Spitzer (Bryden+, 2009)J/ApJS/182/97 : Radial velocities of multi-planet systems (Wittenmyer+, 2009)J/ApJS/168/297 : Stellar parameters of nearby cool stars (Takeda+, 2007)J/ApJ/646/505 : Catalog of nearby exoplanets (Butler+, 2006)J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)J/ApJS/152/261 : Chromospheric Ca II emission in nearby stars (Wright+, 2004)J/A+A/414/351 : ELODIE survey for northern extrasolar planets (Naef+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/727/117https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/727/117http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/727/117https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/727/117https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/727/117http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/727/117GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/727/117/stars (Star parameters (from tables 1 and 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/727/117/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/727/117/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/727/117/stars?GETtext/xml+votable180.050000true286.336555825.92066110.0055555555555555566/4136 14466 18747 23414 27088https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/727/117?format=asciiOpticaldefaultJ/ApJ/727/117/starsStar parameters (from tables 1 and 2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identificationmeta.id;meta.maincharprimarySpTMK spectral typesrc.spTypecharMassMasssolMassphys.massfloatr_Mass[d] d: Takeda et al. (2007, Cat. J/ApJS/168/297)meta.refcharPeraPerioddtime.perioddoublef_Pera[a] a: New planet candidatemeta.codecharPerb? Second perioddtime.perioddoublenullablef_Perb[a] a: New planet candidatemeta.codecharVCVelocity curvemeta.ref.urlcharSimbadSimbad column added by the CDSmeta.refchar_RAPositions from Simbad database (right ascension part)degpos.eq.ra;meta.main_DEPositions from Simbad database (declination part)degpos.eq.dec;meta.mainJ/ApJ/727/117/table3KECK radial velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar identificationmeta.id;meta.maincharBJDBarycentric Julian Datedtime.epochdoubleRVRadial velocitym/sphys.veloc;pos.heliocentricfloate_RVUncertainty in RVm/sstat.errorfloat