Disk stream candidate members J/A+A/694/A307 ivo://CDS.VizieR/J/A+A/694/A307 doi:10.26093/cds/vizier.36940307 CDS Ratzenboeck S. Alves J. Hunt E. Miret-Roig N. Meingast M. Moeller T. 2025-05-21T20:02:02Z 2025-03-04T10:25:24Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr open-star-clusters stellar-ages visible-astronomy We studied 12 disk streams found in a 250^3^pc^3^ volume in the solar neighborhood, which we define as coeval and comoving stellar structures with aspect ratios greater than 3:1. Using Gaia Data Release 3 data and the advanced clustering algorithms SigMA and Uncover, we identified and characterized these streams beyond the search volume, doubling, on average, their known populations. We estimate the number density of disk streams to be ~820 objects/kpc^3^ (for |Z|<100pc), or surface densities of ~160 objects/kpc^2%. These estimates surpass N-body estimates by one to two orders of magnitude and challenge the prevailing understanding of their destruction mechanisms. Our analysis reveals that these 12 disk streams are dynamically cold with 3D velocity dispersions between 2 and 5km/s, exhibit narrow sequences in the Hertzsprung-Russell diagram, and are highly elongated with average aspect ratios of 7:1, extending up to several hundred parsecs. We find evidence suggesting that one of the disk streams, currently embedded in the Scorpius-Centaurus association, is experiencing disruption, likely due to the primordial gas mass of the association. 2025A&A...694A.307R https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/694/A307 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/694/A307 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/694/A307 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/694/A307 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/694/A307 https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/694/A307 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/694/A307 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/A+A/694/A307/sources (Source level information on the 12 recovered disk streams in the solar neighborhood (table F1)) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/694/A307/sources? https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/694/A307/sources? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/694/A307/sources? 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44590 44716 44737 45058 45112 45117 45133 45168 45170 45176 45207 45227-45228 45255 45267 45351 45388 45475 45540 45583 45587 45590 45592 45603 45605 45608 45621 45624-45625 45634 45657 45666 45674 45743 45759 45773 45784-45785 45792 45852 45891 45974 46009 46267 46383 47124 47137 47140 47154 47165 47171 47212 47249 47267 47280 47287 47306 47311 47313 47334 47338 47383 47416 47572 47650 47659 47661 47678 47775 47814 47871 47880 47907 47909 47930 47987 48001 48055 48123 48231 48294 48335 48351 48393 48691 48753 48791 48869 48873 48905 49028 49031 49037 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/694/A307?format=ascii Optical default J/A+A/694/A307/clusters Cluster level information on the 12 recovered disk streams in the solar neighborhood (table 1) recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int SID [1/12] Membership label for each disk stream meta.id int Name Literature name meta.id;meta.main char Size Number of identified sources per disk stream meta.number int Age Isochronal age determined Myr time.age int Length Peak-to-peak length of disk streams pc src.morph.scLength int AR Aspect ratio of first to third principal component axis determined in Galactic cartesian coordinates phys.size.axisRatio float Mass Sum of source masses determined from isochrone fit phys.mass int SysMass System mass determined by fitting IMF to individual source masses phys.mass int 3DVelDisp 3D velocity dispersion measured in Galactic Cartesian velocity space km/s phys.veloc.dispersion float U Disk stream bulk motion in U direction km/s phys.veloc;pos.cartesian.x float V Disk stream bulk motion in V direction km/s phys.veloc;pos.cartesian.y float W Disk stream bulk motion in W direction km/s phys.veloc;pos.cartesian.z float S/N [0/200] Signal-to-noise ratio stat.snr int
J/A+A/694/A307/sources Source level information on the 12 recovered disk streams in the solar neighborhood (table F1) recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int GaiaDR3 Gaia DR3 source identification number meta.id SID [1/12] Membership label meta.id.parent int Name Literature name meta.id;meta.main char RA_ICRS Rigth ascension (ICRS) at Ep=2016.0 deg pos.eq.ra;meta.main DE_ICRS Declination (ICRS) at Ep=2016.0 deg pos.eq.dec;meta.main X X position pc pos.distance;pos.cartesian.x double Y Y position pc pos.distance;pos.cartesian.y double Z Z position pc pos.distance;pos.cartesian.z double U ? U velocity component km/s phys.veloc;pos.cartesian.x double nullable V ? V velocity component km/s phys.veloc;pos.cartesian.y double nullable W ? W velocity component km/s phys.veloc;pos.cartesian.z double nullable