We report the results of observations of small-scale variability in the Balmer lines of hydrogen in the spectrum of ϵ Cephei. Spectral observations were conducted using a low- resolution spectrograph (R≃ 600). The spectra were obtained with a time resolution of 5.79 s. It is found that ϵ Cephei exhibits variations in the hydrogen lines Hβ , Hγ , Hδ , Hϵ. Discrete frequencies of about 3 mHz are observed in ϵ Cephei, similar to the five-minute oscillations excited by p-modes in the Sun. The characteristic time of the observed oscillations ranges from 337 s. The horizontal scale for the oscillations is about 125 Mm. The radial velocity of the variations is about 180 km s−1.
Keywords: instrumentation: detectors - methods: observational - techniques: image - stars: ϵ Cephei