Search for the periodicity in brightness and radial velocity variations of the runaway star HD 218915

Abstract

An analysis of the variations in the brightness and radial velocity of the high-velocity (runaway) star HD 218915 based on the author's ground-based Crimean observations and from Hipparcos data is presented. The analysis leads to the conclusion that there is a periodic component in the brightness and radial velocity variations of HD 218915. The period is estimated to be about 0.89 days.