X-ray studies of stars in the Pleiades Virtual Observatory Resource

Authors
  1. Micela G.
  2. Sciortino S.
  3. Vaiana G.S.
  4. Harnden F.R.
  5. Rosner R.,Schmitt J.H.M.M.
  6. Published by
    CDS
Abstract

Coronal X-ray emission of the Pleiades stars is investigated, and maximum likelihood, integral X-ray luminosity functions are computed for Pleiades members in selected color-index ranges. A detailed search is conducted for long-term variability in the X-ray emission of those stars observed more than once. An overall comparison of the survey results with those of previous surveys confirms the ubiquity of X-ray emission in the Pleiades cluster stars and its higher rate of emission with respect to older stars. It is found that the X-ray emission from dA and early dF stars cannot be proven to be dissimilar to that of Hyades and field stars of the same spectral type. The Pleiades cluster members show a real rise of the X-ray luminosity from dA stars to early dF stars. X-ray emission for the young, solar-like Pleiades stars is about two orders of magnitude more intense than for the nearby solar-like stars.

Keywords
  1. open-star-clusters
  2. emission-line-stars
  3. x-ray-sources
Bibliographic source Bibcode
1990ApJ...348..557M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/348/557
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/348/557
Document Object Identifer DOI
doi:10.26093/cds/vizier.13480557

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/348/557
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/348/557
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/348/557
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/ApJ/348/557/pleiad_1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/348/557/pleiad_1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/348/557/pleiad_1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/348/557/pleiad_2?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/348/557/pleiad_2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/348/557/pleiad_2?

History

1999-05-01T20:29:34Z
Resource record created
1999-05-01T20:29:34Z
Created
2013-03-05T06:33:42Z
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