Known members of Orion A with Gaia DR2 data Virtual Observatory Resource

Authors
  1. McBride A.
  2. Kounkel M.
  3. Published by
    CDS
Abstract

The star-forming region of the Orion Nebula (ONC) is ideal to study the stellar dynamics of young stars in a clustered environment. Using Gaia DR2 we search for pre-main sequence stars with unusually high proper motions that may be representative of a dynamical ejection from unstable young triple systems or other close three-body encounters. We identify 26 candidate stars that are likely to have had such an encounter in the last 1Myr. Nine of these stars could be traced back to the densest central-most region of the ONC, the Trapezium, while five others have likely interactions with other OB-type stars in the cluster. Seven stars originate from other nearby populations within the Orion Complex that coincidentally scattered toward the ONC. A definitive point of origin cannot be identified for the remaining sources. These observations shed light on the frequency of the ejection events in young clusters.

Keywords
  1. young-stellar-objects
  2. proper-motions
  3. visible-astronomy
  4. trigonometric-parallax
  5. radial-velocity
Bibliographic source Bibcode
2019ApJ...884....6M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/884/6
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/884/6
Document Object Identifer DOI
doi:10.26093/cds/vizier.18840006

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/884/6
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/884/6
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/884/6
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/884/6/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/884/6/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/884/6/table1?

History

2021-04-13T08:40:25Z
Resource record created
2021-04-13T08:40:25Z
Created
2021-11-19T11:54:12Z
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