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Search for QPOs in Perseus with Fermi LAT

Published online by Cambridge University Press:  07 April 2020

Rodrigo Nemmen
Affiliation:
Universidade de São Paulo, Instituto de Astronomia, Geofsica e Ciências Atmosféricas, Departamento de Astronomia, São Paulo, SP05508-090, Brazil email: [email protected]
Raniere de Menezes
Affiliation:
Universidade de São Paulo, Instituto de Astronomia, Geofsica e Ciências Atmosféricas, Departamento de Astronomia, São Paulo, SP05508-090, Brazil email: [email protected]
Vasileios Paschalidis
Affiliation:
Depts. of Astronomy & Physics, University of Arizona
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Abstract

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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.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020

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