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Analysis of Long-Term Single-Site Observations of The Pulsating DB White Dwarf GD 3581

  • P.A. Bradley (a1)

Abstract

We briefly describe the analysis of single-site data collected from 1982 to 1992 for the pulsating DB white dwarf GD 358. We show that the amplitudes of almost all of the l = 1 modes change over time, and some of the l = 1 modes disappear for months at a time. We also find a new mode at k = 19, with a frequency of ~1173μHz.

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Footnotes

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1

These data were collected at McDonald Observatory, Fort Davis, Texas

Footnotes

References

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Bradley, P.A., Winget, D.E. 1994 ApJ, 430, 850
Brickhill, J.A. 1992 MNRAS, 259, 529
Clemens, J.C. 1993 Baltic Astron., 2, 511
Kepler, S.O. 1993 Baltic Astron., 2, 515
Kepler, S.O. et al. 2003 A&A, 401, 639
Nather, R.E., Winget, D.E., Clemens, J.C, Hansen, C.J., Hine, B.P. 1990 ApJ, 361, 309
Vuille, F., et al. 2000 MNRAS, 314, 689
Winget, D.E., et al. 1994 ApJ, 430, 839
Wu, Y. 2001 MNRAS, 323, 248

Analysis of Long-Term Single-Site Observations of The Pulsating DB White Dwarf GD 3581

  • P.A. Bradley (a1)

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