VPDs and CMDs of Berkeley32, Berkeley98 and King23 Virtual Observatory Resource

Authors
  1. Sariya D.P.
  2. Jiang I.-G.
  3. Bisht D.
  4. Yadav R.K.S.
  5. Rangwal G.
  6. Published by
    CDS
Abstract

Using the photometric and kinematical data from Gaia Data Release 2, three old open clusters namely Berkeley32 (Be32), Berkeley98 (Be98), and King23 are investigated. The latter two of these clusters are poorly studied in the literature. The numbers of the most probable cluster members are 563, 260, and 114 for Be32, Be98, and King23, respectively, with membership probabilities higher than 80% and lying within the clusters limiting radii. Mean proper motions (PMs; {mu}_{alpha}_cos_{delta}_ and {mu}_{delta}_) of the clusters are determined as (-0.34{+/-}0.008, -1.60{+/-}0.006), (-1.34{+/-}0.007, -3.22{+/-}0.008), and (-0.46{+/-}0.009, -0.87{+/-}0.012)mas/yr. The errors mentioned in the PMs are the Gaussian fitting errors. The blue straggler stars (BSS) in all three old clusters were found to exhibit centralized radial distribution. The clusters' radii are determined as 9.4', 12.95', and 6.6' for Be32, Be98, and King23 using radial density profiles. Ages of the clusters determined by isochrone fitting are 4.90{+/-}0.22, 3.23{+/-}0.15, and 1.95{+/-}0.22Gyr. The errors given in the clusters ages are the internal errors. The mass function slopes are found to be flatter than Salpeter's value for all three clusters. All three clusters are found to be dynamically relaxed. Galactic orbits are derived for these clusters, which demonstrate that the studied clusters follow a circular path around the Galactic center.

Keywords
  1. open-star-clusters
  2. infrared-photometry
  3. visible-astronomy
  4. proper-motions
  5. trigonometric-parallax
Bibliographic source Bibcode
2021AJ....161..102S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/161/102
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/161/102
Document Object Identifer DOI
doi:10.26093/cds/vizier.51610102

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/161/102
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/161/102
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/161/102
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/AJ/161/102/fig3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/161/102/fig3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/161/102/fig3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/161/102/fig4?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/161/102/fig4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/161/102/fig4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/161/102/fig5?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/161/102/fig5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/161/102/fig5?

History

2021-04-28T08:20:03Z
Resource record created
2021-04-28T08:20:03Z
Created
2021-07-05T12:47:22Z
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