Kinematics of young open clusters & O-B2-type stars

DOI

Using young open clusters and O-B2-type stars in Gaia Data Release 3, we investigate the kinematics of the local spiral structure. In general, the young sources in the outer spiral arms may present larger peculiar motions than those in the inner spiral arms. The young open clusters appear to have smaller peculiar motions than the O-B2-type stars, and the sources in both the Perseus and Local Arms may show an inward motion toward the Galactic center and rotate slower than Galactic rotation. Meanwhile, the sources in the Carina Arm may move in the opposite direction from the Sun to the Galactic center and rotate marginally faster than Galactic rotation. In addition, using young open clusters and O-B2-type stars, we have improved the distance estimations of kinematic methods for several regions near the Sun.

Cone search capability for table J/ApJS/268/46/table1 (Summary of the mean parameters of the cluster sample)

Cone search capability for table J/ApJS/268/46/table2 (Summary of the parameters of the O-B2-type stars)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22680046
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/268/46
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/268/46
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/268/46
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/268/46
Provenance
Creator Liu D.; Xu Ye; Hao C.; Bian S.; Lin Z.; Li Y.; Li J.
Publisher CDS
Publication Year 2024
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Exoplanet Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy