PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
Periodicity Analysis of Mrk 501 and Mrk 421 in Gamma Rays
R. Iotov*, A. Arbet-Engels, P. Arras, D. Baack, M. Balbo, A. Biland, M. Boettcher, T. Bretz, J. Buss, D. Dorner, V. Eberle, L. Eisenberger, D. Elsaesser, T. Enßlin, D. Hildebrand, A. Kalenski, A. Kostić, M. Kreter, K. Mannheim, V. Marchenko, A. Mitchell, D. Neise, M. Noethe, A. Paravac, W. Rhode, B. Schleicher, V. Sliusar, M. Tarnopolski, F. Theissen, N. Żywucka and R. Walteret al. (click to show)
Full text: pdf
Pre-published on: July 30, 2021
Published on: March 18, 2022
Abstract
Blazars, a subclass of active galactic nuclei (AGNs), are highly variable objects. Quasiperiodic oscillations (QPOs), which might originate from a binary black hole located at the AGN core,have been found in some blazar light curves. For the blazars Mrk 421 and Mrk 501, we test the possible QPO behavior using a variety of methods (generalized Lomb-Scargle periodogram,continuous-time autoregressive moving average models, wavelet scalograms, and A−T plane), studying systematic effects in detail. We use gamma-ray light curves from FACT, a ground-based imaging air Cherenkov telescope. We report herein on a 3 sigma significant QPO in Mrk 421.
DOI: https://doi.org/10.22323/1.395.0879
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.