Kinematics of Gould Belt Based on Open Clusters

We have redetermined kinematic parameters of the Gould Belt using currently available data on the motion of nearby young (logt<7.91) open clusters, OB associations, and moving stellar groups. Our modeling shows that the residual velocities reach their maximum values of -4km/s for rotation (in the direction of Galactic rotation) and +4km/s for expansion at a distance from the kinematic center of 300pc. We have taken the following parameters of the Gould Belt center: R_0_=150pc and l_0_=128{deg}. The whole structure is shown to move relative to the local standard of rest at a velocity of 10.7+/-0.7km/s in the direction l=274+/-4{deg} and b=-1+/-3{deg}. Using the derived rotation velocity, we have estimated the virial mass of the Gould Belt to be 1.5 million solar masses.

Cone search capability for table J/PAZh/32/906/data (Space velocities of open clusters and OB associations)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/PAZh/32/906
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/32/906
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/32/906
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/PAZh/32/906
Provenance
Creator Bobylev V.V.
Publisher CDS
Publication Year 2007
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; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy