Cataclysmic variables in ZTF 2nd year Virtual Observatory Resource

Authors
  1. Szkody P.
  2. Olde Loohuis C.
  3. Koplitz B.
  4. Van Roestel J.
  5. Dicenzo B.,Ho A.Y.Q.
  6. Hillenbrand L.A.
  7. Bellm E.C.
  8. Dekany R.
  9. Drake A.J.
  10. Duev D.A.,Graham M.J.
  11. Kasliwal M.M.
  12. Mahabal A.A.
  13. Masci F.J.
  14. Neill J.D.,Riddle R.
  15. Rusholme B.
  16. Sollerman J.
  17. Walters R.
  18. Published by
    CDS
Abstract

Using a filter in the GROWTH Marshal based on color and the amplitude and timescale of variability, we have identified 372 objects as known or candidate cataclysmic variables (CVs) during the second year of the operation of the Zwicky Transient Facility. From the available difference imaging data, we found that 93 are previously confirmed CVs and 279 are strong candidates. Spectra of four of the candidates confirm them as CVs by the presence of Balmer emission lines, while one of the four has prominent HeII lines indicative of containing a magnetic white dwarf. Gaia EDR3 parallaxes are available for 154 of these systems, resulting in distances from 108-2096pc and absolute magnitudes in the range of 7.5-15.0, with the largest number of candidates between 10.5 and 12.5. The total numbers are 21% higher than from the previous year of the survey with a greater number of distances available but a smaller percentage of systems close to the Galactic plane. Comparison of these findings with a machine-learning method of searching all the light curves reveals large differences in each data set related to the parameters involved in the search process.

Keywords
  1. variable-stars
  2. infrared-photometry
  3. visible-astronomy
  4. photometry
  5. trigonometric-parallax
Bibliographic source Bibcode
2021AJ....162...94S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/94
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/162/94
Document Object Identifer DOI
doi:10.26093/cds/vizier.51620094

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/94
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/94
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/94
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/162/94/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/94/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/94/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/162/94/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/94/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/94/table2?

History

2021-12-13T07:16:08Z
Resource record created
2021-12-13T07:16:08Z
Created
2023-07-27T07:16:48Z
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