Peakbagging Rotating Kepler Giants

While there exists some indication that there may be magnetic cycles for red giant stars, it is not clear if these cycles have the same dependence on stellar rotation and convection as in main sequence stars. Here, we demonstrate the promise of time-resolved data from NASA's Kepler space mission to be used as asteroseismic indicators of magnetic activity in giants. First, we present a sample of giants with stellar parameter information required to compute the oscillation frequencies as determined by a literature search. We then use open-source Bayesian software to determine the asteroseismic frequencies and show that these frequencies are consistent with previous determinations in the literature. Finally, statistically significant frequencies are extracted as a function of time and used to find magnetic periodicity in these giants.