English

High-speed Photometric Observations of ZZ Ceti White Dwarf Candidates

Solar and Stellar Astrophysics 2015-02-19 v1

Abstract

We present high-speed photometric observations of ZZ Ceti white dwarf candidates drawn from the spectroscopic survey of bright DA stars from the Villanova White Dwarf Catalog by Gianninas et al., and from the recent spectroscopic survey of white dwarfs within 40 parsecs of the Sun by Limoges et al. We report the discovery of six new ZZ Ceti pulsators from these surveys, and several photometrically constant DA white dwarfs, which we then use to refine the location of the ZZ Ceti instability strip.

Keywords

Cite

@article{arxiv.1502.05362,
  title  = {High-speed Photometric Observations of ZZ Ceti White Dwarf Candidates},
  author = {E. M. Green and M. -M. Limoges and A. Gianninas and P. Bergeron and G. Fontaine and P. Dufour and C. J. O'Malley and B. Guvenen and L. I. Biddle and K. Pearson and T. W. Deyoe and C. W. Bullivant and J. J. Hermes and V. Van Grootel and M. Grosjean},
  journal= {arXiv preprint arXiv:1502.05362},
  year   = {2015}
}

Comments

4 pages, 1 table, 2 figures, to appear in "19th European White Dwarf Workshop" in the ASP Conference Series