Discovery of twelve ZZ Ceti stars

Details Discovery of twelve ZZ Ceti stars Discovery of twelve ZZ Ceti stars

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1273..500c&link_type=abstract

17TH EUROPEAN WHITE DWARF WORKSHOP. AIP Conference Proceedings, Volume 1273, pp. 500-503 (2010).

Physics

1

Pulsars, Stars, White Dwarfs, Charge-Coupled Devices, Pulsars, Star Formation, Faint Blue Stars, White Dwarfs, Degenerate Stars, Nuclei Of Planetary Nebulae, Charge-Coupled Devices, Image Detectors, And Ir Detector Arrays

Scientific paper

Using the SOAR 4.1-m telescope, we discovered low amplitude pulsations in three stars previously reported as Not-Observed-to-Vary (NOV), which are inside the ZZ Ceti instability strip. We also report the variability of nine new pulsating stars, bringing the total number of known ZZ Ceti stars to 149. In addition, we lowered the detection limit for 10 NOVs located near the edges of the instability strip. Our results are consistent with a pure mass-dependent ZZ Ceti instability strip.

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