Magnetic CVs spectra and other variable objects Virtual Observatory Resource

Authors
  1. Oliveira A.S.
  2. Rodrigues C.V.
  3. Cieslinski D.
  4. Jablonski F.J.,Silva K.M.G.
  5. Almeida L.A
  6. Rodriguez-Ardila A.
  7. Palhares M.S.
  8. Published by
    CDS
Abstract

The increasing number of synoptic surveys made by small robotic telescopes, such as the photometric Catalina Real-Time Transient Survey (CRTS), provides a unique opportunity to discover variable sources and improves the statistical samples of such classes of objects. Our goal is the discovery of magnetic Cataclysmic Variables (mCVs). These are rare objects that probe interesting accretion scenarios controlled by the white-dwarf magnetic field. In particular, improved statistics of mCVs would help to address open questions on their formation and evolution. We performed an optical spectroscopy survey to search for signatures of magnetic accretion in 45 variable objects selected mostly from the CRTS. In this sample, we found 32 CVs, 22 being mCV candidates, 13 of which were previously unreported as such. If the proposed classifications are confirmed, it would represent an increase of 4% in the number of known polars and 12% in the number of known IPs. A fraction of our initial sample was classified as extragalactic sources or other types of variable stars by the inspection of the identification spectra. Despite the inherent complexity in identifying a source as an mCV, variability-based selection, followed by spectroscopic snapshot observations, has proved to be an efficient strategy for their discoveries, being a relatively inexpensive approach in terms of telescope time.

Keywords
  1. cataclysmic-variable-stars
  2. spectroscopy
Bibliographic source Bibcode
2017AJ....153..144O
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/144
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/153/144
Document Object Identifer DOI
doi:10.26093/cds/vizier.51530144

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/144
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/153/144
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/153/144
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/AJ/153/144/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/153/144/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/153/144/table1?
Web browser access HTML
https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/AJ/153/144

History

2017-03-10T13:16:54Z
Resource record created
2017-03-10T13:16:54Z
Created
2020-05-28T06:51:28Z
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