J/A+A/394/151ivo://CDS.VizieR/J/A+A/394/151doi:10.26093/cds/vizier.33940151CDSCarrier F.North P.Udry S.Babel J.2018-01-10T11:48:28Z2003-01-03T23:10:34ZCDS support team

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

cds-question@unistra.frap-starsspectroscopic-binary-starsradial-velocityWe present new orbits for sixteen Ap spectroscopic binaries, four of which might in fact be Am stars, and give their orbital elements. Four of them are SB2 systems: HD 5550, HD 22128, HD 56495 and HD 98088. The twelve other stars are : HD 9996, HD 12288, HD 40711, HD 54908, HD 65339, HD 73709, HD 105680, HD 138426, HD 184471, HD 188854, HD 200405 and HD 216533. Rough estimates of the individual masses of the components of HD 65339 (53 Cam) are given, combining our radial velocities with the results of speckle interferometry and with Hipparcos parallaxes. Considering the mass functions of 74 spectroscopic binaries from this work and from the literature, we conclude that the distribution of the mass ratio is the same for cool Ap stars as for normal G dwarfs. Therefore, the only differences between binaries with normal stars and those hosting an Ap star lie in the period distribution: except for the case of HD 200405, all orbital periods are longer than (or equal to) 3 days. A consequence of this peculiar distribution is a deficit of null eccentricities. There is no indication that the secondary has a special nature, like e.g. a white dwarf.2002A&A...394..151Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/394/151CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/162 : General Catalogue of Ap and Am stars (Renson+ 1991)III/199 : Observed Periods of Ap and Bp stars (Catalano+ 1998)J/A+AS/130/223 : Multiplicity among chemically peculiar stars. I (North+, 1998)J/A+A/385/488 : Search for duplicity in periodic Be stars (Carrier+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/394/151https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/394/151http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/394/151https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/394/151https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/394/151http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/394/151GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/394/151/stars (Star positions (from Simbad))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/394/151/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/394/151/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/394/151/stars?GETtext/xml+votable180.050000true3.73291722.2841670.0055555555555555566/463 474 481 962 1521 1608 2053 2490 2682 2739 2818 2820 2903 3030 3100 3147 3266 3314 3660 3678 3705 3737 4072 4251 4463 4698 4775 4890 5501 6497 6759 6822 7705 7734 8037 8291 8462 10000 10142 10151 10287 10791 11202 11279 11786 12396 12539 12856 12986 13052 14202 14306 14332 14371 14459-14460 14522 14534 14668 14713 14741 14743 14818 15231 15367 15386 15424 15523 15633 15907 15975 16186 16754 16876 18797 18820 19898 20340 20363 20839 20859 20899 20944 21253 21269 21422 21456 21488 21685 21721 21815 22020 22071 22087 22224 22867 23062 23556 23679 23744 23782 23959 24092 24404 24925 24934 25177 25516 25964 26353 26381 26505 26691 26866 26886 27210 27541 28035 28142 28432 29131 29535 29829 30083 30438 30870 30919 31330 31398 31511 31544 31716 31744 31871 31940 32019 32130 32198 32287 32297 32384 36290 36341 36473 36563 36703 40372 40379 40431 40603 40882 41554 41565 41584 43423 43445 44441 44468 44651 44825 44844 48587 48791https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/394/151?format=asciiOpticaldefaultJ/A+A/394/151/starsStar positions (from Simbad)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD number (Cat. <III/135>)meta.id;meta.mainintprimarySimbadSimbad column added by the CDSmeta.refcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainJ/A+A/394/151/table1Individual RVs and correlation dip parametersHDHD numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleComp[1/2] Component in a binary. 1: primary, 2: secondarymeta.code.multipintRVRadial velocitykm/sphys.veloc;pos.heliocentricfloate_RVEstimated standard deviation of one RV measurementkm/sstat.errorfloatPRRelative depth of the correlation dip (1)stat.fit.paramfloate_PRStandard deviation on the relative depth (1)stat.errorfloatXLWidth of the correlation dip (1)km/sstat.fit.paramfloate_XLStandard deviation on the width (1)km/sstat.errorfloatJ/A+A/394/151/table2Average RVs, Vsini upper limits, P(chi2) etc.HDHD numbermeta.id;meta.mainintVsiniUpper limit to vsinikm/sphys.veloc.rotatfloate_Vsini? Standard deviation on Vsinikm/sstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintComp[ab] Component in a binary. a: primary, b: secondarymeta.code.multipcharRnsRenson number (Cat. <III/162>)meta.idcharSTSpectral typesrc.spTypecharB-VJohnson's B-V indexmagphot.color;em.opt.B;em.opt.VfloatRVMean radial velocitykm/sphys.veloc;pos.heliocentricfloate_RVStandard deviation on the mean RVkm/sstat.errorfloatSCATExternal scatter (sigma) of the RV valueskm/sstat.errorfloatE/IRatio of external to internal errorsstat.errorfloatNmeasNumber of CORAVEL measurements used in the statistics (= total number of measurements, except for some binary components)meta.numberintSPANTime span of the CORAVEL measurementsdtime.intervalintP(chi2)? Probability of no intrinsic RV variationstat.fit.goodnessfloatnullableRemRemark (1)meta.notecharJ/A+A/394/151/table3Ap stars showing no CORAVEL diprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD numbermeta.id;meta.mainintComp[A] Component in a visual double. A: primarymeta.code.multipcharRnsRenson numbermeta.idcharSpTypeSpectral typesrc.spTypecharRemRemarkmeta.notechar