Discovery of seven ZZ Ceti stars using a new photometric selection method
2006 | journal article. A publication with affiliation to the University of Göttingen.
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Discovery of seven ZZ Ceti stars using a new photometric selection method
Voss, B.; Koester, D.; Ostensen, R. H.; Kepler, S. O.; Napiwotzki, R.; Homeier, D. & Reimers, D. (2006)
Astronomy and Astrophysics, 450(3) pp. 1061-1070. DOI: https://doi.org/10.1051/0004-6361:20054227
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Details
- Authors
- Voss, B.; Koester, D.; Ostensen, Roy H.; Kepler, S. O.; Napiwotzki, R.; Homeier, Derek; Reimers, Dieter
- Abstract
- We report the detection of non-radial g-mode oscillations in seven relatively bright ( 14.4 < B < 16.5) DA white dwarf stars from time-series photometry collected at the Nordic Optical Telescope (NOT) at Roque de Los Muchachos Observatory, Spain. The candidate variable stars were selected from preparatory photometric observations of objects from the Hamburg Quasar Survey (HQS) and from spectroscopy of stars from the Villanova (WD) catalogue. The selection of ZZ Ceti candidate stars from photometric data proved nearly as successful as the more common spectroscopic selection method. The effective temperatures that we derive from both methods are consistent with a pure ZZ Ceti instability strip.
- Issue Date
- 2006
- Status
- published
- Publisher
- Edp Sciences S A
- Journal
- Astronomy and Astrophysics
- Organization
- Fakultät für Physik
- ISSN
- 0004-6361
