Absolute proper motions of globular clusters

The absolute proper motions for a total of 92 globular clusters of the Milky Way (60% of all clusters included in the catalogue published by Harris, 1996, Cat. VII/195) are inferred from the UCAC2 proper motions of their likely member stars. The median formal error of the cluster proper motions is equal to 0.8marcsec/yr in both right ascension and declination, whereas the proper-motion errors of individual clusters range from 0.2 to 3marcsec/yr. Tests performed demonstrate the overall validity of the cluster motions; the resulting transverse velocities remain, on the average, virtually constant out to a heliocentric distance of 15kpc and the full space velocity of most of the clusters relative to the Galactic centre remains, on the average, unchanged near 190km/s out to a Galactocentric distance of about 20kpc, in agreement with the overall isothermal structure of the Galactic halo.

Cone search capability for table J/other/A+AT/25.185/table1 (Proper motions of globular clusters)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/other/A+AT/25.185
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/A+AT/25.185
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/A+AT/25.185
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/other/A+AT/25.185
Provenance
Creator Dambis A.K.
Publisher CDS
Publication Year 2014
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; Natural Sciences; Physics; Stellar Astronomy