A detailed analysis of PSR J2021+4026, the first variable gamma-ray pulsar

Fiori, A. and Razzano, M. and Saz Parkinson, P. M. and Mignani, R. and Baldini, L. (2021) A detailed analysis of PSR J2021+4026, the first variable gamma-ray pulsar. Il nuovo cimento C, 44 (2-3). pp. 1-4. ISSN 1826-9885

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Abstract

We present a novel Fermi-LAT analysis of PSR J2021+4026, the first variable γ-ray pulsar. With a maximum likelihood fit, we measure variations in the γ-ray flux and spectral parameters of the source on different timescales. We study the evolution of the rotational parameters and test a simple model that relates spin-down variations to jumps in the γ-ray flux. This preliminary work underlines the importance of the variability analysis to understand pulsar magnetospheres.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 19 Jul 2021 10:08
Last Modified: 19 Jul 2021 10:08
URI: http://eprints.bice.rm.cnr.it/id/eprint/21312

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