Fast Magnetic Reconnection Structures in Poynting Flux-dominated Jets

نویسندگان

چکیده

Abstract The ubiquitous relativistic jet phenomena associated with black holes play a major role in high and very-high-energy (VHE) astrophysics. In particular, observations have demonstrated that blazars show VHE emission time variability from days to minutes (in the gigaelectronvolt teraelectronvolt bands), implying very compact regions. real mechanism of particle acceleration process responsible for this is still being debated, but magnetic reconnection has lately been discussed as strong potential candidate. work, we present results three-dimensional special magnetohydrodynamic simulations development events driven by turbulence induced current-driven kink instability along jet. We performed systematic identification all regions system, characterizing their local field topology quantifying rates. obtained average rates 0.051 ± 0.026 units Alfvén speed), which are comparable predictions theory turbulence-induced fast reconnection. A detailed statistical analysis also follow log-normal distribution, signature its turbulent origin. To probe robustness our method, applied blazar Mrk 421. Building synthetic light curve integrated power, evaluated power spectral density analysis, obtaining good agreement band. This suggests can be possible behind high-energy observed blazars.

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ژورنال

عنوان ژورنال: The Astrophysical Journal

سال: 2021

ISSN: ['2041-8213', '2041-8205']

DOI: https://doi.org/10.3847/1538-4357/abee7a