Mysteries of a Variable Star: Beta Cas - a Time-Series Spectroscopical Analysis

We conducted a time-series spectroscopical analysis on the Delta Scuti star Beta Cas, known for exhibiting only three independent pulsation frequencies, as a variable star. Our aim was to test whether or not the star presents more pulsation frequencies and pulsation modes besides those previously found in photometric studies. The analysis of mode identification is based on the Moment Method, despite the star being a fast rotator, taking into account previously determined stellar parameters. This is a brief summary of our results and observations.