Abstract
| - We report the effort to search for white dwarf p-mode oscillations in RX J2117.1+3412 (V2027 Cyg), a GW Vir star. The data were taken with Miosotys, a multi-fiber photometer, mounted on the 1.93-m telescope at Observatoire de Haute-Provence (OHP) with a 20-Hz cadence in May 2010 and June 2012. Two intriguing signatures at 1.2081 Hz and 2.5852 Hz were found at 3.8- σ and 3.5- σ significance levels, respectively. However, possible atmospheric effects cannot be ruled out. If these two features are not real, the 3- σ upper limit of the relative amplitude for the possible oscillations in the frequency range from 1 to 10 Hz is estimated to be about 6 × 10 -4. This is the first report in the literature for a p-mode oscillation search of GW Vir stars.
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