Preliminary identification of the observed pulsation modes of ZZ Ceti star KUV 03442+0719

• We obtained new photometric time series of the ZZ Ceti star KUV 03442+0719.
• We found rotational splits of l = 1 and l = 2 modes in this star.
• The detection of rotational splits helps us to estimate the mean rotation period.
• By using the asymptotic analysis we get preliminary identification of all of the observed periods.

KUV 03442+0719 is a ZZ Ceti star originally discovered in 2005. We performed observations for it in 2010, 2011 and 2012. From the three years’ Fourier transform spectra, a total number of 43 pulsation periods are detected. We found out a set of complete quintuplets, five sets of incomplete quintuplets and two sets of incomplete triplets among these periods. They are interpreted as rotational splits of l=2l=2 and l=1l=1 modes. We thus derive a mean rotation period of 6.71 ±± 0.11 h from the values of splitting spacing. We perform asymptotic analysis to get preliminary identification of the observed pulsation modes.