J/other/Galax/11ivo://CDS.VizieR/J/other/Galax/11.99CDSVereshchagin S.Chupina N.Lyzenko K.Kalinkin A.Kondratev N.,Kovaleva D.Sapozhnikov S.2025-02-20T13:40:42Z2023-10-03T12:39:33ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyopen-star-clustersphotometryvisible-astronomyUsing Gaia DR3 data, we identified an extended (~60pc) group of stars sharing common motion but scattered in space, including from 150 to 300 probable members, named Group V. It can be associated with a group identified by Getman et al. (2019MNRAS.487.2977G, Cat. J/MNRAS/487/2977) and by Jerabkova et al. (2019MNRAS.489.4418J) as a relic of a gas filament, traced by the mutual position of stars after the gas is swept out. We estimate its age approximately as 16 million years. A combination of methods is applied to select probable members of the Group V. We discuss kinematical characteristics of the stars of Group V and the controversial clues they provide for understanding of its nature. Due to the vicinity of a number of open clusters in the space, differentiating between members of the group and of the clusters is problematic and mutual contamination inevitable. The pair of clusters Gulliver 6 and UBC 17b is wrapped inside the Group V, but differs from it in kinematics.2023Galax..11...99Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/Galax/11.99CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)J/MNRAS/487/2977 : Runaway stellar groups in the Orion A cloud (Getman+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/Galax/11.99https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/Galax/11.99http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/Galax/11.99https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/Galax/11.99https://vizier.iucaa.in/viz-bin/votable?-source=J/other/Galax/11.99http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/Galax/11.99GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/Galax/11.99/tablea1 (Dataset A: probable group members selected with direct methods (see paper, section 2.1, table A1))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/Galax/11.99/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/Galax/11.99/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/Galax/11.99/tablea1?GETtext/xml+votable180.050000true84.39491-10.11905470.005555555555555556Cone search capability for table J/other/Galax/11.99/tablea2 (Dataset B: bright probable group members selected combining statistical method and clustering algorithm (see paper, section 2.4, table A2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/Galax/11.99/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/Galax/11.99/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/Galax/11.99/tablea2?GETtext/xml+votable180.050000true83.8734333-2.11152390.0055555555555555565/5359 5370 5701 5712 5714-5715 6/21391 21402 21414 21421-21422 21425 21430-21431 21435 21486 21496 21498 22799 22809 22813 22852-22854 22880-22881 228841.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/Galax/11.99?format=asciiOpticaldefaultJ/other/Galax/11.99/tablea1Dataset A: probable group members selected with direct methods (see paper, section 2.1, table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 source_idmeta.id;meta.mainPlxParallax, Gaia DR3maspos.parallaxfloatpmRAProper motion in RA multiplied by cos(DE), Gaia DR3mas/yrpos.pm;pos.eq.rafloatpmDEProper motion in Dec, Gaia DR3mas/yrpos.pm;pos.eq.decfloatGmagMean G-band magnitude, Gaia DR3magphot.mag;em.optdoubleBP-RP? BP-RP colour, Gaia DR3magphot.color;em.opt.B;em.opt.RdoublenullableVR? Mean radial velocity, Gaia DR3km/sspect.dopplerVeloc;stat.meanfloatnullablee_VR? Radial velocity error, Gaia DR3km/sstat.errorfloatnullableXX coordinate in heliocentric cartesian system (G1)pcpos.cartesian.x;pos.heliocentricfloatYY coordinate in heliocentric cartesian system (G1)pcpos.cartesian.y;pos.heliocentricfloatZZ coordinate in heliocentric cartesian system (G1)pcpos.cartesian.z;pos.heliocentricfloatU? Velocity projection to the X axis (G1)km/sphys.veloc;pos.cartesian.xfloatnullableV? Velocity projection to the Y axis (G1)km/sphys.veloc;pos.cartesian.yfloatnullableW? Velocity projection to the Z axis (G1)km/sphys.veloc;pos.cartesian.zfloatnullableAG? Extinction in G band from GSP-Phot Aeneas best library, Gaia DR3magphys.absorptionfloatnullableE(BP-RP)? Reddening E(BP-RP) from GSP-Phot Aeneas best library, Gaia DR3magphot.color.excessfloatnullable_RAPositions from Gaia DR3 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Gaia DR3 (declination part)degpos.eq.dec;meta.mainJ/other/Galax/11.99/tablea2Dataset B: bright probable group members selected combining statistical method and clustering algorithm (see paper, section 2.4, table A2)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 source_idmeta.id;meta.mainPlxParallax, Gaia DR3maspos.parallaxfloatpmRAProper motion in RA multiplied by cos(DE), Gaia DR3mas/yrpos.pm;pos.eq.rafloatpmDEProper motion in Dec, Gaia DR3mas/yrpos.pm;pos.eq.decfloatGmagMean G-band magnitude, Gaia DR3magphot.mag;em.optdoubleBP-RP? BP-RP colour, Gaia DR3magphot.color;em.opt.B;em.opt.RdoublenullableVR? Mean radial velocity, Gaia DR3km/sspect.dopplerVeloc;stat.meanfloatnullablee_VR? Radial velocity error, Gaia DR3km/sstat.errorfloatnullableVRexpRadial velocity calculated in suggestion that the source shares mean spacial velocity of the samplekm/sphys.veloc;pos.heliocentricfloatPmembProbability of membership in Group Vstat.probabilityfloatXX coordinate in heliocentric cartesian system (G1)pcpos.cartesian.x;pos.heliocentricfloatYY coordinate in heliocentric cartesian system (G1)pcpos.cartesian.y;pos.heliocentricfloatZZ coordinate in heliocentric cartesian system (G1)pcpos.cartesian.z;pos.heliocentricfloat_RAPositions from Gaia DR3 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Gaia DR3 (declination part)degpos.eq.dec;meta.main