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
Text
ncc12235.pdf - Published Version Download (233kB) |
Official URL: https://www.sif.it/riviste/sif/ncc
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 |
Actions (login required)
View Item |