2MASS observations of Be stars Virtual Observatory Resource

Authors
  1. Zhang P.
  2. Chen P.S.
  3. Yang H.T.
  4. Published by
    CDS
Abstract

A catalogue of almost all known Galactic Be stars in the 2MASS (<II/246>) database (1185 in total) and in the MSX (<V/114>) database (225 in total) is presented in this paper. From the color-color diagrams and spectral indexes, it is found that the IR excesses for many samples are due to free-free and free-bound emission from the ionized material around a Be star as suggested previously and that the mean spectral index derived for the samples is 1.50+/-0.34 between J to K bands and 1.14+/-0.42 between K to A bands, respectively. However, it is also found that there are eight Be stars that have large near infrared excess emission with spectral index values outside the range expected for freefree and freebound emission. This is likely attributed to circumstellar dust emission.

Keywords
  1. emission-line-stars
  2. be-stars
  3. infrared-photometry
Bibliographic source Bibcode
2005NewA...10..325Z
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NewA/10.325
IVOA Identifier IVOID
ivo://CDS.VizieR/J/other/NewA/10.325

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NewA/10.325
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NewA/10.325
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NewA/10.325
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/other/NewA/10.325/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/other/NewA/10.325/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NewA/10.325/table1?

History

2006-09-10T13:07:23Z
Resource record created
2006-09-10T13:07:23Z
Created
2006-09-10T13:11:04Z
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