Spectroscopy and photometry of CV candidates Virtual Observatory Resource

Authors
  1. Thorstensen J.R.
  2. Skinner J.N.
  3. Published by
    CDS
Abstract

The Catalina Real Time Survey (CRTS) has found over 500 cataclysmic variable (CV) candidates, most of which were previously unknown. We report here on follow-up spectroscopy of 36 of the brighter objects. Nearly all of the spectra are typical of CVs at minimum light. One object appears to be a flare star, while another has a spectrum consistent with a CV but lies, intriguingly, at the center of a small nebulosity. We measured orbital periods for eight of the CVs, and estimated distances for two based on the spectra of their secondary stars. In addition to the spectra, we obtained direct imaging for an overlapping sample of 37 objects, for which we give magnitudes and colors. Most of our new orbital periods are shortward of the so-called period gap from roughly 2 to 3hr. By considering the cross-identifications between the Catalina objects and other catalogs such as the Sloan Digital Sky Survey, we argue that a large number of CVs remain uncataloged. By comparing the CRTS sample to lists of previously known CVs that CRTS does not recover, we find that the CRTS is biased toward large outburst amplitudes (and hence shorter orbital periods). We speculate that this is a consequence of the survey cadence.

Keywords
  1. cataclysmic-variable-stars
  2. novae
  3. infrared-photometry
  4. visible-astronomy
  5. Wide-band photometry
  6. line-intensities
  7. radial-velocity
Bibliographic source Bibcode
2012AJ....144...81T
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/81
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/144/81
Document Object Identifer DOI
doi:10.26093/cds/vizier.51440081

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/81
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/81
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/81
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/AJ/144/81/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/81/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/81/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/81/table6?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/81/table6?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/81/table6?

History

2013-12-04T12:02:21Z
Resource record created
2013-12-04T12:02:21Z
Created
2020-08-06T16:13:46Z
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