Analysis of Single-Site Observations of hte Pulsating DB White Dwarf GD358

Details Analysis of Single-Site Observations of hte Pulsating DB White Dwarf GD358 Analysis of Single-Site Observations of hte Pulsating DB White Dwarf GD358

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.7204b&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #72.04; Bulletin of the American Astronomical Society, Vol. 34, p.764

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Scientific paper

The pulsating DB white dwarf GD 358 has been observed by the Whole Earth Telescope (WET) in 1990, 1994, and 2000. While these observing runs revealed a wealth of pulsation modes, they constitute three ``snapshots'' of the behavior of this star. I and others collected single-site data on GD358 from 1990 to 1992, and I have archival data from 1982 to 1986 that has the potential to reveal long-term amplitude changes in the pulsation modes of GD358. We use the WET data to determine the periods of the the pulsation modes and take this information to disentagle the real modes from the exensive alias pattern of the single-site data. We will present a sample of Fourier Transforms of our single-site data, showing what we have managed to extract thus far.

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