Search for QPOs in Perseus with Fermi LAT

Abstract

We report the analysis of the gamma-ray variability of NGC 1275--the radio galaxy at the center of the Perseus cluster. NGC 1275 has been observed continuously with the Fermi Large Area Telescope over the last nine years. We applied different time-domain analysis methods including Fourier, wavelets and Bayesian methods, in order to search for quasi-periodic oscillations in the gamma-ray emission. We found no evidence for periodicities of astrophysical origin.

Proceedings of IAU Symposium 342: Perseus in Sicily--from black hole to cluster outskirts. 5 pages, 3 figures

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