Another state change of the variable gamma-ray pulsar PSR J2021+4026 observed by astronomers

Another state change of the variable gamma-ray pulsar PSR J2021+4026 observed by astronomers
Using NASA’s Fermi telescope, astronomers have detected a state change of the gamma-ray emission and spin-down rate of the variable radio-quiet gamma-ray pulsar PSR J2021+4026. Such behavior was first observed in this pulsar in 2011, and the new detection could shed light on the mechanism of state switching in gamma-ray pulsars. The finding is detailed in a paper published January 2 on arXiv.org.
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