J/A+A/692/A192ivo://CDS.VizieR/J/A+A/692/A192doi:10.26093/cds/vizier.36920192CDSBlex S.Haas M.Chini R.2025-02-26T20:02:22Z2024-12-13T10:38:26ZCDS support team

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

cds-question@unistra.frspectroscopic-binary-starso-starsspectroscopyWe determined the projected rotational velocity (vsini) of 238 southern O stars selected from the Galactic O-star Survey. The sample contains 130 spectroscopic single stars (C), 36 single-lined binaries (SB1), and 72 SB2 systems (including eight triples). We applied the Fourier method to high- resolution spectra taken at Cerro Murphy, Chile, and supplemented by archival spectra. The overall vsini statistics peaks at slow rotators (40-100km/s) with a tail towards medium (100-200km/s) and fast rotators (200-400km/s). Binaries, on average, show increased rotation, which differs for close (Porb<10d) and wide binaries (10d<Porb<3700d), and for primaries and secondaries. The spin-up of close binaries is well explained by the superposition of spin-orbit synchronisation and mass transfer via Roche-lobe overflow. The increased rotation of wide binaries, however, needs another explanation. Therefore, we discuss various spin-up mechanisms. Timescale arguments lead us to favour a scenario where wide O binaries are spun-up by a combination of cloud or disk fragmentation, which lays the basis of triple and multiple stars, and the subsequent merging or swallowing of low-mass by higher-mass stars or proto-stars.2024A&A...692A.192Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/692/A192CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/122 : SB9: 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2005)III/274 : Galactic O-Star Spectroscopic Survey (GOSSS) (Sota+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/692/A192https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/692/A192http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/692/A192https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/692/A192https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/692/A192http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/692/A192GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/692/A192/tabled1 (C+SB1)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/692/A192/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/692/A192/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/692/A192/tabled1?GETtext/xml+votable180.050000true100.2443759.895750.005555555555555556Cone search capability for table J/A+A/692/A192/tabled2 (SB2+SB3)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/692/A192/tabled2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/692/A192/tabled2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/692/A192/tabled2?GETtext/xml+votable180.050000true270.9685208-24.36073110.0055555555555555566/12405 12943 14353 19407 20613 21438-21439 21635 21638 21647 21655-21656 22033 22088 22211 22216 22240 22243 22249 22253 22258 22517 22854 22887 23637 23717 23774 23962 23982 24179 28687 28796 28809 28833 28865 28890-28892 28900 28913 28915 29025 29036 29089 29091 29095 29098 29115 29158 29190 29463 29513 29525 29530 29537 29600 29866 30216 30818 37212 37245 37333-37334 37339 37750 37833 37861 37863 37897 37899-37901 37907 37923 37926 37930-37932 37934 37938 37948 38016 38018 38020 38022 38024 38074 39238 39248 39252 39254 39264 39281 39327 39374 39386 39793 39804 39907 39930 39971 41592 41595 41598-41599 41610 41630 41653 41655 41671 41673 41675 41685-41686 41698 41702 41707 41715 41747 41750 41769 41787 41813 41903 42203 42206 42213-42214 42226 42228 42236 42283 42287 42303 42377 42383 42394 42398 42405 42407-42408 42416-42417 42421 42456 42458 42462 42464 42470-42471 42483 42764 43041 43062 43144https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/692/A192?format=asciidefaultJ/A+A/692/A192/tabled1C+SB1recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSimbadNameSimbad column added by the CDSmeta.idcharnullableNameStar namemeta.id;meta.maincharSBtypeBinary type [C, SB1] (1)src.classcharSpTypeSpectral typesrc.spTypecharLCLuminosity classsrc.class.luminositycharRefsReferences, in refs.dat filemeta.ref;pos.framecharNspecTotal number of spectrameta.numberintNBESONumber of BESO spectrameta.numberintNFEROSNumber of FEROS spectrameta.numberintNotherNumber of UVES + ELODIE spectrameta.numberintn_SBtype? Notes on SBtype (2)meta.noteintnullableRstarCalibration stellar radius (3)solRadphys.angSize;srcfloatMstarCalibration stellar mass (3)solRadphys.massfloatPorb? Orbital perioddtime.periodfloatnullabler_PorbReferences for orbital period, in refs.dat filemeta.ref;pos.framecharn_Porb[1/2]? Notes on orbital period (4)meta.notechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/692/A192/tabled2SB2+SB3LCBLuminosity class of B (1)src.class.luminositycharSpTypeCSpectral type of tertiary C (1)src.spTypecharLCCLuminosity class of C (1)src.class.luminositycharr_SpTypeReferences for spectral types, in refs.dat filemeta.ref;pos.framecharNspecTotal number of spectrameta.numberintNBESONumber of BESO spectrameta.numberintNFEROSNumber of FEROS spectrameta.numberintNotherNumber of UVES + ELODIE spectrameta.numberintDTDisentangling type, see Appendix Asrc.classcharQFA[ABCD] Quality flag of primary (2)meta.code.qualcharQFB[ABCDN] Quality flag of secondary (2)meta.code.qualcharQFC[ABCD] Quality flag of tertiary (2)meta.code.qualcharRstarACalibration stellar radius of A (3)solRadphys.angSize;srcfloatMstarACalibration stellar mass of A (3)solMassphys.massfloatRstarBCalibration stellar radius of B (3)solMassphys.angSize;srcfloatMstarBCalibration stellar mass of B (3)solMassphys.massfloatRstarC? Calibration stellar radius of C (3)solRadphys.angSize;srcfloatnullablel_vsiniCLimit on literature vsini of Cmeta.code.errorcharvsiniC? Literature vsini of Ckm/sphys.veloc.rotatintnullablee_vsiniC? Literature vsini error of Ckm/sstat.errorintnullabler_vsiniReferences for literature vsini, in refs.dat filemeta.refcharPorb? Literature orbital perioddtime.periodfloatnullablei? Literature orbital inclinationdegsrc.orbital.inclinationfloatnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableMstarC? Calibration stellar mass of C (3)solMassphys.massfloatnullableNoteSB[1/3]? Notes on SBtype, Rstar and Mstar (4)meta.noteintnullablel_vsiniALimit on literature vsini of Ameta.code.errorcharvsiniA? Literature vsini of Akm/sphys.veloc.rotatintnullablee_vsiniA? Literature vsini error of Akm/sstat.errorintnullablel_vsiniBLimit on literature vsini of Bmeta.code.errorcharvsiniB? Literature vsini of Bkm/sphys.veloc.rotatintnullablee_vsiniB? Literature vsini error of Bkm/sstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharSBtype[SB2, SB3] Binary typesrc.classcharSpTypeASpectral type of primary A (1)src.spTypecharLCALuminosity class of A (1)src.class.luminositycharSpTypeBSpectral type of secondary B (1)src.spTypecharRlitA? Literature stellar radius of AsolRadphys.angSize;srcfloatnullableRlitB? literature stellar radius of BsolRadphys.angSize;srcfloatnullabler_PorbReferences for Porb, i, Rlit, in refs.dat filemeta.ref;pos.framecharNote[1/6]? Notes on literature values (5)meta.noteintnullable_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/A+A/692/A192/tabled3Rotation ratesNHeI6678? Number of HeI6678 spectra usedmeta.numberintnullablee_vsiniHeI7065? vsini error of HeI7065km/sstat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.numbercharCompComponent name (1)meta.codecharvsiniBest vsini adoptedkm/sphys.veloc.rotatintn_vsiniOrigin of best vsini (2)meta.notecharProtsiniRotational period/sini (3)dphysfloatvsiniOIII? vsini of OIII5592km/sphys.veloc.rotatfloatnullablee_vsiniOIII? vsini error of OIII5592km/sstat.errorfloatnullableNOIII? Number of spectra of OIII5592meta.numberintnullablevsiniHeI? Average vsini of HeI lineskm/sphys.veloc.rotatchare_vsiniHeI? vsini error of HeI lineskm/sstat.errorfloatnullableNHeI? Number of HeI lines usedmeta.numberintnullableNtotHeI? Total number of HeI spectrameta.numberintnullablevsiniHeII? average vsini of HeII lineskm/sphys.veloc.rotatfloatnullablee_vsiniHeII? vsini error of HeII lineskm/sstat.errorfloatnullableNHeII? Number of HeII lines usedmeta.numberintnullableNtotHeII? Total number of HeII spectrameta.numberintnullablevsiniHeI4026? vsini of HeI4026km/sphys.veloc.rotatfloatnullablee_vsiniHeI4026? vsini error of HeI4026km/sstat.errorfloatnullableNHeI4026? Number of HeI4026 spectra usedmeta.numberintnullablevsiniHeI4387? vsini of HeI4387km/sphys.veloc.rotatfloatnullablee_vsiniHeI4387? vsini error of HeI4387km/sstat.errorfloatnullableNHeI4387? Number of HeI4387 spectra usedmeta.numberintnullablevsiniHeI4471? vsini of HeI4471km/sphys.veloc.rotatfloatnullablee_vsiniHeI4471? vsini error of HeI4471km/sstat.errorfloatnullableNHeI4471? Number of HeI4471 spectra usedmeta.numberintnullablevsiniHeI4922? vsini of HeI4922km/sphys.veloc.rotatfloatnullablee_vsiniHeI4922? vsini error of HeI4922km/sstat.errorfloatnullableNHeI4922? Number of HeI4922 spectra usedmeta.numberintnullablevsiniHeI5876? vsini of HeI5876km/sphys.veloc.rotatfloatnullablee_vsiniHeI5876? vsini error of HeI5876km/sstat.errorfloatnullableNHeI5876? Number of HeI5876 spectra usedmeta.numberintnullablevsiniHeI6678? vsini of HeI6678km/sphys.veloc.rotatfloatnullablee_vsiniHeI6678? vsini error of HeI6678km/sstat.errorfloatnullablevsiniHeI7065? vsini of HeI7065km/sphys.veloc.rotatfloatnullableNHeI7065? Number of HeI7065 spectra usedmeta.numberintnullablevsiniHeII4200? vsini of HeII4200km/sphys.veloc.rotatfloatnullablee_vsiniHeII4200? vsini error of HeII4200km/sstat.errorfloatnullableNHeII4200? Number of HeII4200 spectra usedmeta.numberintnullablevsiniHeII4541? vsini of HeII4541km/sphys.veloc.rotatfloatnullablee_vsiniHeII4541? vsini error of HeII4541km/sstat.errorfloatnullableNHeII4541? Number of HeII4541 spectra usedmeta.numberintnullablevsiniHeII4686? vsini of HeII4686km/sphys.veloc.rotatfloatnullablee_vsiniHeII4686? vsini error of HeII4686km/sstat.errorfloatnullableNHeII4686? Number of HeII4686 spectra usedmeta.numberintnullablevsiniHeII5411? vsini of HeII5411km/sphys.veloc.rotatfloatnullablee_vsiniHeII5411? vsini error of HeII5411km/sstat.errorfloatnullableNHeII5411? Number of HeII5411 spectra usedmeta.numberintnullableJ/A+A/692/A192/tabled4Statistics of lines usedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLineNameLine namemeta.id;spect.linecharNsingleNumber of C+SB1 stars using the linemeta.numberintNmultiNumber of stars in SB2+SB3 using the linemeta.numberintJ/A+A/692/A192/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintAutAuthor's namemeta.bib.authorcharBibCodeBibCodemeta.bib.bibcodecharComCommentsmeta.notechar