ASAS chromospherically active eclipsing binaries Virtual Observatory Resource

Authors
  1. Parihar P.
  2. Messina S.
  3. Bama P.
  4. Medhi B.J.
  5. Muneer S.
  6. Velu C.
  7. Ahmad A.
  8. Published by
    CDS
Abstract

We have started a spectroscopic survey to identify new chromospherically active components and low-mass pre-main sequence (PMS) stars in recently discovered All Sky Automated Survey (ASAS) eclipsing binaries. In this paper, we briefly describe our scientific motivation, the observing tools and the results obtained from the first phase of this survey. Using the available observing facilities in India, the spectroscopic observations of a sample of 180 candidate eclipsing binary stars selected from ASAS-I&II releases were carried out during 2004-2006. The strength of Halpha emission was used to characterize the level of chromospheric activity. Our spectroscopic survey reveals that out of 180 stars about 36 binary systems show excess Halpha emission. One of the objects in our sample, ASAS 081700-4243.8, displays very strong Halpha emission. Follow-up high-resolution spectroscopic observations reveal that this object is indeed very interesting and most likely a classical Be-type system with K0III companion.

Keywords
  1. eclipsing-binary-stars
  2. infrared-photometry
  3. morgan-keenan-classification
Bibliographic source Bibcode
2009MNRAS.395..593P
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/395/593
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/395/593
Document Object Identifer DOI
doi:10.26093/cds/vizier.73950593

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/395/593
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/395/593
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/395/593
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/395/593/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/395/593/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/395/593/table1?

History

2010-01-31T17:59:35Z
Resource record created
2010-01-31T17:59:35Z
Created
2024-07-08T20:15:50Z
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