J/MNRAS/494/1448ivo://CDS.VizieR/J/MNRAS/494/1448doi:10.26093/cds/vizier.74941448CDSIgoshev A.P.Perets H.B.Michaely E.2024-08-20T20:17:07Z2023-07-28T13:51:47ZCDS support team

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

cds-question@unistra.frmultiple-starscataclysmic-variable-starswhite-dwarf-starssubdwarf-starsvariable-starsorbitsvisible-astronomyEvolution of close binaries often proceeds through the common envelope stage. The physics of the envelope ejection (CEE) is not yet understood, and several mechanisms were suggested to be involved. These could give rise to different time-scales for the CEE mass-loss. In order to probe the CEE-time-scales we study wide companions to post-CE binaries. Faster mass-loss time-scales give rise to higher disruption rates of wide binaries and result in larger average separations. We make use of data from Gaia DR2 to search for ultrawide companions (projected separations 10^3^-2x10^5^au and M_2_>0.4M_{sun}_) to several types of post-CEE systems, including sdBs, white dwarf post-common binaries, and cataclysmic variables. We find a (wide-orbit) multiplicity fraction of 1.4+/-0.2 per cent for sdBs to be compared with a multiplicity fraction of 5.0+/-0.2 per cent for late-B/A/F stars which are possible sdB progenitors. The distribution of projected separations of ultrawide pairs to main sequence stars and sdBs differs significantly and is compatible with prompt mass-loss (upper limit on common envelope ejection time-scales of 10^2^yr). The smaller statistics of ultrawide companions to cataclysmic variables and post-CEE binaries provide weaker constraints. Nevertheless, the survival rate of ultrawide pairs to the cataclysmic variables suggest much longer, ~10^4^yr time-scales for the CEE in these systems, possibly suggesting non-dynamical CEE in this regime.2020MNRAS.494.1448Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/494/1448CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/MNRAS/382/1377 : SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2007)J/A+A/621/A38 : Gaia catalogue of hot subluminous stars (Geier+, 2019)B/cb : Cataclysmic Binaries, LMXBs, and related objectshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/494/1448https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/494/1448http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/494/1448https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/494/1448https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/494/1448http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/494/1448GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/494/1448/table2 (Resolved binaries found in the MSWD sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/1448/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/1448/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/1448/table2?GETtext/xml+votable180.050000true17.7304756-10.33670330.005555555555555556Cone search capability for table J/MNRAS/494/1448/table3 (Wide binaries found in the MSWD sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/1448/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/1448/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/1448/table3?GETtext/xml+votable180.050000true6.1185-10.41208330.005555555555555556Cone search capability for table J/MNRAS/494/1448/table4 (The identified sdB systems with wide companions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/1448/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/1448/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/1448/table4?GETtext/xml+votable180.050000true123.053384417.64781810.005555555555555556Cone search capability for table J/MNRAS/494/1448/table5 (Wide binaries found in the CVs sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/1448/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/1448/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/1448/table5?GETtext/xml+votable180.050000true35.3895132.72330190.0055555555555555566/1013 1213 1397 2309 2346 2417 2591 3886 4142 4271 4316 4390 4670 4761 4907 5112 5178 5230 5265 5485 5660 5772 5798 6093-6094 6114 6124 6450 6612 6848 7052 7297 7331 8242 8477 8558 8580 8996 9032 9226 9777 9861 10087 10328 10549 11116 11225 11447 11452 11795 12942 12983 13681 14231 14312 14463 14585 14873 15079 15359 15693 15918 15999 16886 17229 17510 17549 17743 17745 17756 17758 17763 18125 18229 18778 18841 19091 19097 21381 22341 23181 23211 23752 24813 26042 26328 26960 27058 27192 27486 27842 27900 28203 28292 28569 28676 29026 29222 30044 30512 30547 30564 31986 32494 32506 32702 33321 33498 34139 34655 36937 37000 37389 37523 38056 39896 40433 41354 41445 41611 41916 41949 42055 42196 42499 42511 42520 42547 43225 45443 47125 47168 47525 47675 47791 48915https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/494/1448?format=asciiOpticaldefaultJ/MNRAS/494/1448/table2Resolved binaries found in the MSWD sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (SDSSJHHMMSS.ss+DDMMSS.s)meta.idcharGaiaDR2Gaia DR2 source identifier of the primary componentmeta.id;meta.mainGaiaDR2sGaia DR2 source identifier of the secondary componentmeta.idSepAngular separation of the two componentsarcsecpos.angDistancefloatdplxParallax difference between the two componentsmaspos.parallax.trigfloate_dplxError on dplxmasstat.errorfloatdpmProper motion difference between the two componentsmas/yrpos.pm;arith.difffloate_dpmError on dpmmas/yrstat.errorfloatAProjected orbital separationAUpos.angDistancedoublepCE[Y/N] Indicates if this is a post-common envelope (pCE) binary systemmeta.codechar_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/MNRAS/494/1448/table3Wide binaries found in the MSWD sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (SDSSJHHMMSS.ss+DDMMSS.s)meta.idcharGaiaDR2Gaia DR2 source identifier of the primary componentmeta.id;meta.mainGaiaDR2sGaia DR2 source identifier of the secondary componentmeta.idSepAngular separation of the two componentsarcsecpos.angDistancefloatdplxParallax difference between the two componentsmaspos.parallax.trigfloate_dplxError on dplxmasstat.errorfloatdpmProper motion difference between the two componentsmas/yrpos.pm;arith.difffloate_dpmError on dpmmas/yrstat.errorfloatAProjected orbital separationAUpos.angDistancedoublepCE[Y/N] Indicates if this is a post-common envelope (pCE) binary systemmeta.codechar_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/MNRAS/494/1448/table4The identified sdB systems with wide companionsNameSource namemeta.idcharSimbadSimbad column added by the CDSmeta.ref.urlchardplxParallax difference between the two componentsmaspos.parallax.trigfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR2Gaia DR2 source identifier of the primary componentmeta.id;meta.mainGaiaDR2sGaia DR2 source identifier of the secondary componentmeta.idSepAngular separation of the two componentsarcsecpos.angDistancefloate_dplxError on dplxmasstat.errorfloatdpmProper motion difference between the two componentsmas/yrpos.pm;arith.difffloate_dpmError on dpmmas/yrstat.errorfloatAProjected orbital separationAUpos.angDistancedoubleMultInformation about any known multiplicity of the sdB star (1)meta.codechar_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/MNRAS/494/1448/table5Wide binaries found in the CVs sampleSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource namemeta.idcharGaiaDR2Gaia DR2 source identifier of the primary componentmeta.id;meta.maine_dplxError on dplxmasstat.errorfloatGaiaDR2sGaia DR2 source identifier of the secondary componentmeta.idSepAngular separation of the two componentsarcsecpos.angDistancefloatdplxParallax difference between the two componentsmaspos.parallax.trigfloatdpmProper motion difference between the two componentsmas/yrpos.pm;arith.difffloate_dpmError on dpmmas/yrstat.errorfloatAProjected orbital separationAUpos.angDistancedoubleTypeCataclysmic variable type (1)meta.code.classchar_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.main