Is There Short Time-Scale Pulsation in e Aur?

Twenty observations for ε Aur were taken successional using the Radial Velocity Meter at the Coud'e focus of the McDonald Observatory 2.1 m reflector.The results,listed in Table 1 and drawn in Fig.1,Show that the variations of radial velocity of e Aur within one hour is larger than the deviation,from 8 radial velocity standard stars observed at same night.Ⅰ suggest that the radial velocity of ε Aur change with a short time-Scale,in another words,there is short time-scale pulsation in ε Aur.But the observation time is not long enough to make sure.The author is greatly indebted to Dr.Barnes Ⅲ for his observations and guidance during my data reducing.