Symbiotic stars with 2MASS, WISE & Gaia data Virtual Observatory Resource

Authors
  1. Akras S.
  2. Guzman-Ramirez L.
  3. Leal-Ferreira M.L.
  4. Ramos-Larios G.
  5. Published by
    CDS
Abstract

We present a new census of Galactic and extragalactic symbiotic stars (SySts). This compilation contains 323 known and 87 candidate SySts. Of the confirmed SySts, 257 are Galactic and 66 extragalactic. The spectral energy distributions (SEDs) of 348 sources have been constructed using 2MASS and AllWISE data. Regarding the Galactic SySts, 74% are S types, 13% D, and 3.5% D'. S types show an SED peak between 0.8 and 1.7{mu}m, whereas D types show a peak at longer wavelengths between 2 and 4{mu}m. D' types, on the other hand, display a nearly flat profile. Gaia distances and effective temperatures are also presented. According to their Gaia distances, S types are found to be members of both thin and thick Galactic disk populations, while S+IR and D types are mainly thin disk sources. Gaia temperatures show a reasonable agreement with the temperatures derived from SEDs within their uncertainties. A new census of the OVI{lambda}6830 Raman-scattered line in SySts is also presented. From a sample of 298 SySts with available optical spectra, 55% are found to emit the line. No significant preference is found among the different types. The report of the OVI{lambda}6830 Raman-scattered line in non-SySts is also discussed as well as the correlation between the Raman-scattered OVI line and X-ray emission. We conclude that the presence of the OVI Raman-scattered line still provides a strong criterion for identifying a source as a SySt.

Keywords
  1. multiple-stars
  2. infrared-photometry
  3. effective-temperature
  4. astronomical-reference-materials
  5. variable-stars
Bibliographic source Bibcode
2019ApJS..240...21A
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/240/21
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJS/240/21
Document Object Identifer DOI
doi:10.26093/cds/vizier.22400021

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/240/21
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/240/21
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/240/21
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/ApJS/240/21/systars?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/240/21/systars?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/240/21/systars?

History

2019-06-06T15:27:30Z
Resource record created
2019-06-06T15:27:30Z
Created
2020-07-01T08:00:01Z
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