White dwarf candidates in DECam first field Virtual Observatory Resource

Authors
  1. Belardi C.
  2. Kilic M.
  3. Munn J.A.
  4. Gianninas A.
  5. Barber S.D.
  6. Dey A.,Stetson P.B.
  7. Published by
    CDS
Abstract

We present the first results from a minute cadence survey of a 3deg^2^ field obtained with the Dark Energy Camera. We imaged part of the Canada-France-Hawaii Telescope Legacy Survey area over eight half-nights. We use the stacked images to identify 111 high proper motion white dwarf candidates with g<=24.5mag and search for eclipse-like events and other sources of variability. We find a new g=20.64mag pulsating ZZ Ceti star with pulsation periods of 11-13min. However, we do not find any transiting planetary companions in the habitable zone of our target white dwarfs. Given the probability of eclipses of 1 per cent and our observing window from the ground, the non-detection of such companions in this first field is not surprising. Minute cadence DECam observations of additional fields will provide stringent constraints on the frequency of planets in the white dwarf habitable zone.

Keywords
  1. Surveys
  2. White dwarf stars
  3. Optical astronomy
  4. Sloan photometry
  5. Stellar ages
  6. Stellar distance
Bibliographic source Bibcode
2016MNRAS.462.2506B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/462/2506
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/462/2506

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/462/2506
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/462/2506
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/462/2506
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/MNRAS/462/2506/table13?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/2506/table13?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/2506/table13?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/462/2506/table24?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/462/2506/table24?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/462/2506/table24?

History

2018-03-23T12:40:24Z
Resource record created
2018-03-23T12:40:24Z
Created
2018-05-16T07:03:12Z
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