WIYN open cluster study. LX. RV survey of NGC 6819 Virtual Observatory Resource

Authors
  1. Milliman K.E.
  2. Mathieu R.D.
  3. Geller A.M.
  4. Gosnell N.M.
  5. Meibom S.,Platais I.
  6. Published by
    CDS
Abstract

We present the current state of the WOCS radial-velocity (RV) survey for the rich open cluster NGC 6819 (2.5Gyr) including 93 spectroscopic binary orbits with periods ranging from 1.5 to 8000days. These results are the product of our ongoing RV survey of NGC 6819 using the Hydra Multi-Object Spectrograph on the WIYN 3.5m telescope. We also include a detailed analysis of multiple prior sets of optical photometry for NGC 6819. Within a 1{deg} field of view, our stellar sample includes the giant branch, the red clump, and blue straggler candidates, and extends to almost 2 mag below the main sequence (MS) turnoff. For each star observed in our survey we present all RV measurements, the average RV, and velocity variability information. Additionally, we discuss notable binaries from our sample, including eclipsing binaries (WOCS 23009, WOCS 24009, and WOCS 40007), stars noted in Kepler asteroseismology studies (WOCS 4008, WOCS 7009, and WOCS 8007), and potential descendants of past blue stragglers (WOCS 1006 and WOCS 6002). We find the incompleteness-corrected binary fraction for all MS binaries with periods less than 10^4^days to be 22%+/-3% and a tidal circularization period of 6.2^+1.1^_-1.1_days for NGC 6819.

Keywords
  1. open-star-clusters
  2. spectroscopic-binary-stars
  3. orbits
  4. radial-velocity
Bibliographic source Bibcode
2014AJ....148...38M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/148/38
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/148/38
Document Object Identifer DOI
doi:10.26093/cds/vizier.51480038

Access

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/148/38
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/148/38
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/148/38
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http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/148/38/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/148/38/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/148/38/table2?

History

2014-11-20T06:55:42Z
Resource record created
2014-11-20T06:55:42Z
Created
2017-12-18T07:56:54Z
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