SLoWPoKES-II catalog Virtual Observatory Resource

Authors
  1. Dhital S.
  2. West A.A.
  3. Stassun K.G.
  4. Schluns K.J.
  5. Massey A.P.
  6. Published by
    CDS
Abstract

We present the Sloan Low-mass Wide Pairs of Kinematically Equivalent Stars (SLoWPoKES)-II catalog of low-mass visual binaries identified from the Sloan Digital Sky Survey (SDSS) by matching photometric distances. The candidate pairs are vetted by comparing the stellar information. The candidate pairs are vetted by comparing the stellar density at their respective Galactic positions to Monte Carlo realizations of a simulated Milky Way. In this way, we are able to identify large numbers of bona fide wide binaries without the need for proper motions. Here, 105537 visual binaries with angular separations of ~1-20" were identified, each with a probability of chance alignment of {<=}5%. This is the largest catalog of bona fide wide binaries to date, and it contains a diversity of systems--in mass, mass ratios, binary separations, metallicity, and evolutionary states--that should facilitate follow-up studies to characterize the properties of M dwarfs and white dwarfs. There is a subtle but definitive suggestion of multiple populations in the physical separation distribution, supporting earlier findings. We suggest that wide binaries are composed of multiple populations, most likely representing different formation modes. There are 141 M7 or later wide binary candidates, representing a seven-fold increase over the number currently known. These binaries are too wide to have been formed via the ejection mechanism. Finally, we found that 6% of spectroscopically confirmed M dwarfs are not included in the SDSS STAR catalog; they are misclassified as extended sources due to the presence of a nearby or partially resolved companion. The SLoWPoKES-II catalog is publicly available to the entire community on the World Wide Web via the Filtergraph data visualization portal.

Keywords
  1. multiple-stars
  2. m-stars
  3. dwarf-stars
  4. visible-astronomy
  5. sloan-photometry
  6. stellar-spectral-types
Bibliographic source Bibcode
2015AJ....150...57D
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/150/57
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/150/57
Document Object Identifer DOI
doi:10.26093/cds/vizier.51500057

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/150/57
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/150/57
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/150/57
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/150/57/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/57/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/57/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/57/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/57/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/57/table4?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/57/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/57/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/57/table5?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/150/57/table6?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/150/57/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/150/57/table6?

History

2016-01-26T06:59:23Z
Resource record created
2016-01-26T06:59:23Z
Created
2017-01-23T22:00:00Z
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