Stellar groups of Orion's Sword region Virtual Observatory Resource

Authors
  1. Vereshchangin S.V.
  2. Chupina N.V.
  3. Published by
    CDS
Abstract

The region of Orion's Sword with coordinates RA=83.79{deg}, DE=-5.20{deg} and a size of 1.0{deg}x2.5{deg} is analyzed. We compiled a master catalog of stars observed in the optical, containing positions, proper motions, and UBV photometry for 1634 stars. Using the nearest-neighbor-distance technique, we subdivided the region into stellar groups with different numbers of members. The positions of five groups coincide with known clusters, and two groups coincide with aggregates of stars with H{alpha} emission. We have identified groups with low membership that are moving away from the system. We also considered the kinematic structure of the groups using the AD-diagram method we developed earlier. Most of the stellar clusters and groups display similar kinematics, with the exception of the group OMC-2, which is moving toward its own apex. We also confirmed the existence of the kinematic star group 189 discovered earlier; its position is close to the cluster NGC 1977, and it is probably a component of its corona.

Keywords
  1. Nebulae
  2. Proper motions
Bibliographic source Bibcode
2010AZh....87..853V
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/87/853
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AZh/87/853

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/87/853
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/87/853
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/87/853
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/AZh/87/853/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AZh/87/853/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AZh/87/853/table2?

History

2011-09-07T15:32:42Z
Resource record created
2011-09-07T15:32:42Z
Created
2011-12-13T13:58:24Z
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