Membership & properties of moving groups with Gaia Virtual Observatory Resource

Authors
  1. Ujjwal K.
  2. Kartha S.S.
  3. Mathew B.
  4. Manoj P.
  5. Narang M.
  6. Published by
    CDS
Abstract

We analyze the membership probability of young stars belonging to nearby moving groups with Gaia DR2 data. The sample of 1429 stars was identified from "The Catalog of Suspected Nearby Young Moving Group Stars" (CSNYMGS; see Riedel+, J/AJ/153/95). Good-quality parallax and proper motion values were retrieved for 890 stars from the Gaia DR2 database. The analysis for membership probability is performed in the framework of the LACEwING algorithm (Riedel 2016IAUS..314...33R). From the analysis it is confirmed that 279 stars do not belong to any of the known moving groups. We estimated the U, V, W space velocity values for 250 moving group members, which were found to be more accurate than previous values listed in the literature. The velocity ellipses of all the moving groups are well constrained within the "good box," a widely used criterion to identify moving group members. The age of moving group members are uniformly estimated from the analysis of the Gaia color-magnitude diagram with MIST isochrones. We found a spread in the age distribution of stars belonging to some moving groups, which needs to be understood from further studies.

Keywords
  1. Stellar associations
  2. Stellar ages
  3. Stellar spectral types
  4. Stellar distance
Bibliographic source Bibcode
2020AJ....159..166U
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/159/166
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/159/166
Document Object Identifer DOI
doi:10.26093/cds/vizier.51590166

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/159/166
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/159/166
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/159/166
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/166/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/166/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/166/table2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/159/166/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/159/166/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/159/166/table1?

History

2020-05-27T09:18:22Z
Resource record created
2020-05-27T09:18:22Z
Created
2022-09-19T09:01:55Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr