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Title: The extent of power-law energy spectra in collisionless relativistic magnetic reconnection in pair plasma

Journal Article · · The Astrophysical Journal. Letters (Online)
 [1];  [1];  [2];  [3];  [4]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Princeton Univ., Princeton, NJ (United States)
  3. Univ. of Colorado and National Institute of Standards and Technology, Boulder, CO (United States); Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Univ. of Colorado and National Institute of Standards and Technology, Boulder, CO (United States)

Using two-dimensional particle-in-cell simulations, we characterize the energy spectra of particles accelerated by relativistic magnetic reconnection (without guide field) in collisionless electron–positron plasmas, for a wide range of upstream magnetizations σ and system sizes L. The particle spectra are well-represented by a power law $${\gamma }^{-\alpha }$$, with a combination of exponential and super-exponential high-energy cutoffs, proportional to σ and L, respectively. As a result, for large L and σ, the power-law index α approaches about 1.2.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1261075
Report Number(s):
SLAC-PUB-16599; arXiv:1409.8262
Journal Information:
The Astrophysical Journal. Letters (Online), Vol. 816, Issue 1; ISSN 2041-8213
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 169 works
Citation information provided by
Web of Science

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Magnetoluminescence book January 2017
Magnetoluminescence journal June 2017
Modeling non-thermal emission from the jet-launching region of M 87 with adaptive mesh refinement journal November 2019
Particle acceleration during magnetic reconnection in a low-beta pair plasma journal May 2016
Strongly localized magnetic reconnection by the super-Alfvénic shear flow journal August 2018
3D turbulent reconnection: Theory, tests, and astrophysical implications journal January 2020
Plasmoid statistics in relativistic magnetic reconnection journal January 2018
Radiative signatures of plasmoid-dominated reconnection in blazar jets journal October 2018
The steady growth of the high-energy spectral cut-off in relativistic magnetic reconnection journal October 2018
Marginally fast cooling synchrotron models for prompt GRBs journal February 2018
Physics of the saturation of particle acceleration in relativistic magnetic reconnection journal February 2018
Interpreting Crab Nebula’s synchrotron spectrum: two acceleration mechanisms journal August 2019
Interplasmoid Compton scattering and the Compton dominance of BL Lacs journal December 2019
Particle acceleration in relativistic magnetic reconnection with strong inverse-Compton cooling in pair plasmas journal August 2018
Ab-initio Pulsar Magnetosphere: Particle Acceleration in Oblique Rotators and High-energy Emission Modeling journal March 2018
Fully Kinetic Large-scale Simulations of the Collisionless Magnetorotational Instability journal June 2018
X-Ray and Optical Studies of the Redback System PSR J2129–0429 journal July 2018
Two-stage Electron Acceleration by 3D Collisionless Guide-field Magnetic Reconnection journal September 2018
Prompt Emission of Gamma-Ray Bursts from the Wind of Newborn Millisecond Magnetars: A Case Study of GRB 160804A journal October 2018
Bright Gamma-Ray Flares Powered by Magnetic Reconnection in QED-strength Magnetic Fields journal January 2019
Effects of Synchrotron Cooling and Pair Production on Collisionless Relativistic Reconnection journal May 2019
The Synchrotron Emission Pattern of Intrabinary Shocks journal July 2019
Relativistic Magnetic Reconnection in Electron–Positron–Proton Plasmas: Implications for Jets of Active Galactic Nuclei journal July 2019
Formation of Power-law Electron Energy Spectra in Three-dimensional Low- β Magnetic Reconnection journal October 2019
A Quasi-static Hyper-resistive Model of Ultra-high-energy Cosmic-ray Acceleration by Magnetically Collimated Jets Created by Active Galactic Nuclei journal October 2019
The Interplay of Magnetically Dominated Turbulence and Magnetic Reconnection in Producing Nonthermal Particles journal November 2019
Electron Acceleration from Expanding Magnetic Vortices During Reconnection with a Guide Field journal January 2020
Large-amplitude Blazar Polarization Angle Swing as a Signature of Magnetic Reconnection journal August 2018
Determining the Dominant Acceleration Mechanism during Relativistic Magnetic Reconnection in Large-scale Systems journal July 2019
Particle Acceleration during Magnetic Reconnection in a Low-beta Pair Plasma text January 2016
Two-stage electron acceleration by 3D collisionless guide field magnetic reconnection text January 2017
Ab-Initio Pulsar Magnetosphere: Particle acceleration in Oblique Rotators and High-energy Emission Modeling text January 2017
Plasmoid statistics in relativistic magnetic reconnection text January 2017
Physics of the saturation of particle acceleration in relativistic magnetic reconnection text January 2017
Marginally fast cooling synchrotron models for prompt GRBs text January 2018
Particle acceleration in relativistic magnetic reconnection with strong inverse-Compton cooling in pair plasmas text January 2018
Large-Amplitude Blazar Polarization Angle Swing as a Signature of Magnetic Reconnection text January 2018
Bright gamma-ray flares powered by magnetic reconnection in QED-strength magnetic fields text January 2018
Interpreting Crab Nebula synchrotron spectrum: two acceleration mechanisms text January 2018
Relativistic Magnetic Reconnection in Electron-Positron-Proton Plasmas: Implications for Jets of Active Galactic Nuclei text January 2019
Inter-Plasmoid Compton Scattering and the Compton Dominance of BL Lacs text January 2019
3D Turbulent Reconnection: Theory, Tests and Astrophysical Implications text January 2020