A. Gianninas et al. 2006 The Astronomical Journal 132 831 doi:10.1086/506516
A. Gianninas1, P. Bergeron1 and G. Fontaine1
Show affiliationsAs part of an ongoing program to better map the empirical instability strip of pulsating ZZ Ceti white dwarfs, we present a brief progress report based on our last observing season. We discuss here high-speed photometric measurements for six new pulsators. These stars were selected on the basis of preliminary measurements of their effective temperatures and surface gravities, which placed them inside or near the known ZZ Ceti instability strip. We also report detection limits for a number of DA white dwarfs that showed no sign of variability. Finally, we revisit the ZZ Ceti star G232-38, for which we obtained improved high-speed photometry.
Issue 2 (2006 August)
Received 2006 April 21, accepted for publication 2006 June 6
Published 2006 July 7
A. Gianninas et al. 2006 The Astronomical Journal 132 831
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