J/A+A/585/A134ivo://CDS.VizieR/J/A+A/585/A134doi:10.26093/cds/vizier.35850134CDSDiaz R.F.Segransan D.Udry S.Lovis C.Pepe F.Dumusque X.,Marmier M.Alonso R.Benz W.Bouchy F.Coffinet A.Collier Cameron A.,Deleuil M.Figueira P.Gillon M.Lo Curto G.Mayor M.Mordasini C.,Motalebi F.Moutou C.Pollacco D.Pompei E.Queloz D.Santos N.,Wyttenbach A.2016-01-11T07:09:00Z2016-01-11T08:03:22ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsradial-velocityWe present the analysis of the entire HARPS observations of three stars that host planetary systems: HD1461, HD40307, and HD204313. The data set spans eight years and contains more than 200 nightly averaged velocity measurements for each star. This means that it is sensitive to both long-period and low-mass planets and also to the e ects induced by stellar activity cycles. We modelled the data using Keplerian functions that correspond to planetary candidates and included the short- and long-term effects of magnetic activity. A Bayesian approach was taken both for the data modelling, which allowed us to include information from activity proxies such as log(R'_HK_) in the velocity modelling, and for the model selection, which permitted determining the number of significant signals in the system. The Bayesian model comparison overcomes the limitations inherent to the traditional periodogram analysis. We report an additional super-Earth planet in the HD1461 system. Four out of the six planets previously reported for HD40307 are confirmed and characterised. We discuss the remaining two proposed signals. In particular, we show that when the systematic uncertainty associated with the techniques for estimating model probabilities are taken into account, the current data are not conclusive concerning the existence of the habitable-zone candidate HD40307 g. We also fully characterise the Neptune-mass planet that orbits HD204313 in 34.9 days.2016A&A...585A.134Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/585/A134CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/469/L43 : Radial velocities of Gl 581 (Udry+, 2007)J/A+A/474/293 : Radial velocities of GJ 674 (Bonfils+, 2007)J/A+A/493/639 : Velocity curves of HD 40307 (Mayor+, 2009)J/A+A/493/645 : Gl 176 radial velocities (Forveille+, 2009)J/A+A/496/513 : RV of 6 stars with long-period giant planets (Moutou+, 2009)J/A+A/496/521 : Radial velocities of HD45364 (Correia+, 2009)J/A+A/496/527 : Radial velocity curves of HD 47186 & HD 181433 (Bouchy+, 2009)J/A+A/507/487 : GJ 581 radial velocity curve (Mayor+, 2009)J/A+A/511/A21 : Radial velocities of GJ876 planetary system (Correia+, 2010)J/A+A/512/A46 : Radial velocities of BD-08 2823 (Hebrard+, 2010)J/A+A/512/A47 : Radial velocities of 3 stars with giant planets (Santos+ 2010)J/A+A/512/A48 : HD125612, HD215497, HIP5158 HARPS RV curves (Lo Curto+, 2010)J/A+A/523/A15 : HARPS XXIII: RV data for the 8 targets (Naef+, 2010)J/A+A/526/A111 : Radial velocity of HD 85390, 90156, 103197 (Mordasini+, 2011)J/A+A/526/A112 : Radial velocities of HARPS metal-poor sample (Santos+, 2011)J/A+A/526/A141 : Velocity monitoring of Gl 676A and HIP 12961 (Forveille+ 2011)J/A+A/527/A63 : 7 new HARPS planetary systems RV (Moutou+, 2011)J/A+A/528/A112 : Radial velocities of HD 10180 (Lovis+, 2011)J/A+A/551/A59 : HD103774, HD109271 and BD-061339 RV curves (Lo Curto+, 2013)J/A+A/556/A110 : HARPS radial velocities of GJ 163 (Bonfils+, 2013)J/A+A/566/A35 : Radial velocities of HD 41248 (Santos+, 2014)J/A+A/575/A119 : 3 HARPS M dwarfs RV and stellar activityJ/A+A/576/A48 : Radial velocity monitoring for 6 stars (Moutou+, 2015)J/A+A/585/A135 : HD175607 RV, logRHK and Halpha index (Mortier+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/585/A134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/585/A134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/585/A134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/585/A134https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/585/A134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/585/A134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/585/A134/hd204313HARPS and CORALIE measurements for HD204313recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date of observation (BJD-2450000)dtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVRadial velocity uncertaintykm/sstat.errorfloatBISBisector velocity span of the cross-correlation function (CCF)m/sphys.velocfloatFWHMFull width at half-maximum of the CCFkm/sspect.line.widthfloatlogRhk? Activity indicator based on CaII HKphot.flux;arith.ratiofloatnullablee_logRhk? Uncertainty in the log(R'hk) measurementstat.errorfloatnullableInstrInstrument (HARPS, CORALIE98, or CORALIE07)meta.id;instrcharJ/A+A/585/A134/table1Basic characteristics of the HARPS observations of the three target stars and rotational periodsNTotal number of spectrameta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharNnightsTotal number of nights on which the target was observedmeta.numberintObs.startStarting date of observationtime.start;obsnullableObs.endEnding date of observationtime.epochnullableSpanTime spanyrtime.intervalfloat<S/N>Average signal-to-noise ratio computed over the nightly average spectra at 550nmstat.snrintProtRotational period estimated from log(R'_HK_) using the relationship by Mamajek & Hillenbrand (2008, Cat. J/ApJ/687/1264)dtime.periodfloate_Protrms uncertainty on Protdstat.errorfloatVCShow the Radial Velocity curvesmeta.ref.urlcharFileNameName of the file with radial velocity curvemeta.id;meta.filecharJ/A+A/585/A134/hd40307HARPS measurements for HD40307recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date of observation (BJD-2450000)dtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVRadial velocity uncertaintykm/sstat.errorfloatBISBisector velocity span of the cross-correlation function (CCF)m/sphys.velocfloatFWHMFull width at half-maximum of the CCFkm/sspect.line.widthfloatlogRhk? Activity indicator based on CaII HKphot.flux;arith.ratiofloatnullablee_logRhk? Uncertainty in the log(R'hk) measurementstat.errorfloatnullableInstrInstrument (HARPS, CORALIE98, or CORALIE07)meta.id;instrcharJ/A+A/585/A134/hd1461HARPS measurements for HD1461recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date of observation (BJD-2450000)dtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVRadial velocity uncertaintykm/sstat.errorfloatBISBisector velocity span of the cross-correlation function (CCF)m/sphys.velocfloatFWHMFull width at half-maximum of the CCFkm/sspect.line.widthfloatlogRhk? Activity indicator based on CaII HKphot.flux;arith.ratiofloatnullablee_logRhk? Uncertainty in the log(R'hk) measurementstat.errorfloatnullableInstrInstrument (HARPS, CORALIE98, or CORALIE07)meta.id;instrchar