J/A+A/608/A95ivo://CDS.VizieR/J/A+A/608/A95doi:10.26093/cds/vizier.36080095CDSMerle T.Van Eck S.Jorissen A.Van der Swaelmen M.Masseron T.,Zwitter T.Hatzidimitriou D.Klutsch A.Pourbaix D.Blomme R.,Worley C.C.Sacco G.Lewis J.Abia C.Traven G.Sordo R.,Bragaglia A.Smiljanic R.Pancino E.Damiani F.Hourihane A.,Gilmore G.Randich S.Koposov S.Casey A.Morbidelli L.,Franciosini E.Magrini L.Jofre P.Costado M.T.Jeffries R.D.,Bergemann M.Lanzafame A.C.Bayo A.Carraro G.Flaccomio E.Monaco L.,Zaggia S.2019-08-20T14:50:36Z2018-03-22T16:25:43ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starsradial-velocityThe Gaia-ESO Survey (GES) is a large spectroscopic survey that provides a unique opportunity to study the distribution of spectroscopic multiple systems among different populations of the Galaxy. Aims. Our aim is to detect binarity/multiplicity for stars targeted by the GES from the analysis of the cross-correlation functions (CCFs) of the GES spectra with spectral templates. We developed a method based on the computation of the CCF successive derivatives to detect multiple peaks and determine their radial velocities, even when the peaks are strongly blended. The parameters of the detection of extrema (DOE) code have been optimized for each GES GIRAFFE and UVES setup to maximize detection. The DOE code therefore allows to automatically detect multiple line spectroscopic binaries (SBn, n>=2). We apply this method on the fourth GES internal data release and detect 354 SBn candidates (342 SB2, 11 SB3, and even one SB4), including only nine SBs known in the literature. This implies that about 98% of these SBn candidates are new because of their faint visual magnitude that can reach V=19. Visual inspection of the SBn candidate spectra reveals that the most probable candidates have indeed a composite spectrum. Among the SB2 candidates, an orbital solution could be computed for two previously unknown binaries: CNAME 06404608+0949173 (known as V642 Mon) in NGC 2264 and CNAME 19013257-0027338 in Berkeley 81 (Be 81). A detailed analysis of the unique SB4 (four peaks in the CCF) reveals that CNAME 08414659-5303449 (HD 74438) in the open cluster IC 2391 is a physically bound stellar quadruple system. The SB candidates belonging to stellar clusters are reviewed in detail to discard false detections. We suggest that atmospheric parameters should not be used for these system components; SB-specific pipelines should be used instead. Our implementation of an automatic detection of spectroscopic binaries within the GES has allowed the efficient discovery of many new multiple systems. With the detection of the SB1 candidates that will be the subject of a forthcoming paper, the study of the statistical and physical properties of the spectroscopic multiple systems will soon be possible for the entire GES sample.2017A&A...608A..95Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/608/A95CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/608/A95https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/608/A95http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/608/A95https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/608/A95https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/608/A95http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/608/A95GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/608/A95/tableb1 (List of SB2 candidates in selected fields ordered by right ascension)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A95/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A95/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A95/tableb1?GETtext/xml+votable180.050000true268.606-37.84911110.005555555555555556Cone search capability for table J/A+A/608/A95/tablea1 (List of SB2 candidates in the field ordered by right ascension)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A95/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A95/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A95/tablea1?GETtext/xml+votable180.050000true1.027625-1.03088890.005555555555555556Cone search capability for table J/A+A/608/A95/tablea2 (List of SB3 candidates in the field ordered by right ascension)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A95/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A95/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A95/tablea2?GETtext/xml+votable180.050000true125.0968333-14.04888890.005555555555555556Cone search capability for table J/A+A/608/A95/tablec1 (SB2, SB3, and SB4 candidates in clusters ordered by increasing identifier)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/608/A95/tablec1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/608/A95/tablec1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/608/A95/tablec1?GETtext/xml+votable180.050000true129.7319167-52.96433330.0055555555555555566/4298 14336 17382 17405 17693 17725 17741 17810 17966 18001 18003 18017 18639 18645 18708 18765 18840 18974 19092 19104 20562 20937 20939 21594 21617 21778 21784 21912 22078 22945 23126 23189 23204 23637 24576 24589 25074 25247 25326 25645 25688 25756 26126 26803 27172 28683 28722 28745 28765 28778 28890-28891 30215 30295 30308 30472 31017 31236 31790 31812 33633 33726 33746 33751 33761 33813 33818 33995 34018 34033 34075 34334 34348 34901 34905 34907 34918 34922 34980 34982 35005 35025 35031 35072 35079 35117 35346 35387 36106 36957 37129 37231 37592-37594 37787 37790 37938 38016 38018-38019 38024 38240 38252 38299 38316 38363 38490 38503 38694 39183 39216-39218 39352 39354-39355 39685 39696 39698 40370 40392 40666-40667 40746 40752 40881 41466 41649 42324-42325 42340 42496 42527 42555 42604 42648-42649 42663 42668 42980 43034 43360 43377 43419 43512 43593 43675 43692 43710 43712 43776 44287 44392 44440-44441 44451 44507 44760 44815 44819 44972 45556 45912 45990 46037 46064 46151 46225 46243 46263 46343 46357 46368 46436 46617 47168 47339 47390 47644 47661 47679 47716 47751 47753 47780 47809 49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/608/A95?format=asciidefaultJ/A+A/608/A95/tableb1List of SB2 candidates in selected fields ordered by right ascensionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField name (1)obs.fieldCNameGES name (HHMMSSss+DDMMSSs, J2000)meta.id;meta.maincharFlagFinal flag after visual inspection (G1)meta.code.errorcharNexpNumber of exposures available for that starmeta.numberintNSpNumber of available spectra (G2)meta.numberintSetupSpectrograph setup(s)instr.setupcharMJDModified Julian date of the unique observation listeddtime.epochdoubleRV1Radial velocity of first componentkm/sspect.dopplerVelocfloatRV2Radial velocity of second componentkm/sspect.dopplerVelocfloatVmagVisual magnitude of the sourcemagphot.mag;em.opt.Vfloatn_Vmag[b] Note on Vmag (2)meta.notechar_RARight ascension (derived from CName) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from CName) for Eq=J2000degpos.eq.dec;meta.mainJ/A+A/608/A95/tablea1List of SB2 candidates in the field ordered by right ascensionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCNameGES name (HHMMSSss+DDMMSSs, J2000)meta.id;meta.maincharFlagFinal flag after visual inspection (G1)meta.code.errorcharNexpNumber of exposures available for that starmeta.numberintNSpNumber of available spectra (G2)meta.numberintSetupSpectrograph setup(s)instr.setupcharMJDModified Julian date of the unique observation listeddtime.epochdoubleRV1Radial velocity of first componentkm/sspect.dopplerVelocfloatRV2Radial velocity of second componentkm/sspect.dopplerVelocfloatVmagVisual magnitude of the sourcemagphot.mag;em.opt.VfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight ascension (derived from CName) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from CName) for Eq=J2000degpos.eq.dec;meta.mainJ/A+A/608/A95/tablea2List of SB3 candidates in the field ordered by right ascensionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintCNameGES name (HHMMSSss+DDMMSSs, J2000)meta.id;meta.maincharFlagFinal flag after visual inspection (G1)meta.code.errorcharNexpNumber of exposures available for that starmeta.numberintNSpNumber of available spectra (G2)meta.numberintSetupSpectrograph setup(s)instr.setupcharMJDModified Julian date of the unique observation listeddtime.epochdoubleRV1Radial velocity of first componentkm/sspect.dopplerVelocfloatRV2Radial velocity of second componentkm/sspect.dopplerVelocfloatRV3Radial velocity of third componentkm/sspect.dopplerVelocfloatVmagVisual magnitude of the sourcemagphot.mag;em.opt.VfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight ascension (derived from CName) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from CName) for Eq=J2000degpos.eq.dec;meta.mainJ/A+A/608/A95/tablec1aCluster informationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharlogAgeCluster agelog(yr)time.agefloatRVCluster radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV? rms uncertainty on RVkm/sstat.errorfloatnullablem_Cluster[AB] For NGC 2451meta.code.multipcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/608/A95/tablec1SB2, SB3, and SB4 candidates in clusters ordered by increasing identifierrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharCNameGES name (HHMMSSss+DDMMSSs, J2000)meta.id;meta.maincharFlagFinal flag after visual inspection (G1)meta.code.errorcharNexpNumber of exposures available for that starmeta.numberintNSpNumber of available spectra (G2)meta.numberintSetupSpectrograph setup(s)instr.setupcharMJDModified Julian date of the unique observation listeddtime.epochdoubleRV1Radial velocity of first componentkm/sspect.dopplerVelocfloatRV2Radial velocity of second componentkm/sspect.dopplerVelocfloatRV3? Radial velocity of third componentkm/sspect.dopplerVelocfloatnullableSBSB typesrc.classcharMemb[yn] whether the SB candidate belongs to the cluster or not (see Sect. 4.2) ?meta.notecharu_Memb[?] Uncertainy flag on Membmeta.code.errorcharRemAdditional information after detailed inspection of their spectra and CCFs(1)meta.note_RARight ascension (derived from CName) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from CName) for Eq=J2000degpos.eq.dec;meta.main