Wide low very low-mass binary systems Virtual Observatory Resource

Authors
  1. Galvez-Ortiz M.C.
  2. Solano E.
  3. Lodieu N.
  4. Aberasturi M.
  5. Published by
    CDS
Abstract

The frequency of multiple systems and their properties are key constraints of stellar formation and evolution. Formation mechanisms of very low-mass (VLM) objects are still under considerable debate, and an accurate assessment of their multiplicity and orbital properties is essential for constraining current theoretical models. Taking advantage of the virtual observatory capabilities, we looked for comoving low and VLM binary (or multiple) systems using the Large Area Survey of the UKIDSS LAS DR10, SDSS DR9 and the 2MASS Catalogues. Other catalogues (WISE, GLIMPSE, SuperCosmos, etc.) were used to derive the physical parameters of the systems. We report the identification of 36 low and VLM (~M0-L0 spectral types) candidates to binary/multiple system (separations between 200 and 92000au), whose physical association is confirmed through common proper motion, distance and low probability of chance alignment. This new system list notably increases the previous sampling in their mass-separation parameter space (~100). We have also found 50 low-mass objects that we can classify as ~L0-T2 according to their photometric information. Only one of these objects presents a common proper motion high-mass companion. Although we could not constrain the age of the majority of the candidates, probably most of them are still bound except four that may be under disruption processes. We suggest that our sample could be divided in two populations: one tightly bound wide VLM systems that are expected to last more than 10 Gyr, and other formed by weak bound wide VLM systems that will dissipate within a few Gyr.

Keywords
  1. multiple-stars
Bibliographic source Bibcode
2017MNRAS.466.2983G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/466/2983
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/466/2983

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/466/2983
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/466/2983
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/466/2983
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/MNRAS/466/2983/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/2983/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/2983/table2?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/2983/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/2983/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/2983/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/2983/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/2983/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/2983/table5?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/466/2983/tablea1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/466/2983/tablea1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/466/2983/tablea1?

History

2019-11-27T15:03:10Z
Resource record created
2019-11-27T15:03:10Z
Created
2024-08-17T20:17:51Z
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