Fornax Globular 3 Virtual Observatory Resource

Authors
  1. Smith E.O.
  2. Michael R.R.
  3. Neill J.D.
  4. Published by
    CDS
Abstract

We present new B-V color-magnitude diagrams for Fornax globular cluster 3 and the surrounding field where our data reach one magnitude below the horizontal branch which is at V_HB_=21.28. After subtracting the field stars from the cluster CMD, we found no evidence for an intrinsic width of the red giant branch because the scatter is only slightly wider than the photometric errors. We determine that there is an intrinsic width to the horizontal branch because the scatter is larger than the photometric errors. After comparing our data with earlier photometry, we find 7 possible variable stars, both within and outside the instability strip, out of a total of 74 horizontal branch stars. We calculate the horizontal branch type of cluster 3 to be of intermediate color, -0.110+/-0.104, which when compared to Fornax cluster 1, having similar metallicity, suggests a second-parameter pair. Five carbon star candidates identified by Jorgensen & Jimenez (1997, Cat. <J/A+A/317/54>) are marked in the field-subtracted color-magnitude diagram. (c) 1997 American Astronomical Society.

Keywords
  1. globular-star-clusters
  2. visible-astronomy
  3. Wide-band photometry
Bibliographic source Bibcode
1997AJ....114.1471S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/114/1471
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/114/1471
Document Object Identifer DOI
doi:10.26093/cds/vizier.51141471

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/114/1471
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/114/1471
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/114/1471
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/AJ/114/1471/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/114/1471/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/114/1471/table3?

History

1998-03-15T15:23:23Z
Resource record created
1998-03-15T15:23:23Z
Created
2023-04-06T16:50:26Z
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