Monitoring of the cool ZZ Ceti star PG 2303+243

Abstract

Because PG 2303+243 had not been observed since 1992, we have arranged the mini-campaign of six observatories on PG 2303+243 in 2004 Sep. 5-21 for the more detailed frequency analysis of variations. The amplitudes of the most frequencies change even during the one night and some frequencies can disappear or appear in one year. Probably it is resonance effect. We have estimated 69 frequencies of pulsations and their amplitudes according the observations from 2004 and 36 frequencies and its amplitudes from 2005.

Document Type

Conference Proceeding

DOI

https://doi.org/10.1017/S1743921307000786

Keywords

(stars:) white dwarfs, Stars: individual (PG 2303+243), Stars: oscillations

Publication Date

8-1-2006

Journal Title

Proceedings of the International Astronomical Union

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