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Title: Identifying the linear phase of the relativistic Kelvin-Helmholtz instability and measuring its growth rate via radiation

Journal Article · · Physical Review E
 [1];  [2];  [1];  [1];  [1];  [2];  [2]
  1. Helmholtz-Zentrum Dresden - Rossendorf (Germany); Technische Univ. Dresden (Germany)
  2. Helmholtz-Zentrum Dresden - Rossendorf (Germany)

For the relativistic Kelvin-Helmholtz instability (KHI), which occurs at shear interfaces between two plasma streams, we report results on the polarized radiation over all observation directions and frequencies emitted by the plasma electrons from ab initio kinetic simulations. We find the polarization of the radiation to provide a clear signature for distinguishing the linear phase of the KHI from its other phases. During the linear phase, we predict the growth rate of the KHI radiation power to match the growth rate of the KHI to a high degree. Our predictions are based on a model of the vortex dynamics, which describes the electron motion in the vicinity of the shear interface between the two streams. Albeit the complex and turbulent dynamics happening in the shear region, we find excellent agreement between our model and large-scale particle-in-cell simulations. Our findings pave the way for identifying the KHI linear regime and for measuring its growth rate in astrophysical jets observable on earth as well as in laboratory plasmas.

Research Organization:
UT-Battelle LLC/ORNL, Oak Ridge, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-00OR22725
OSTI ID:
1565611
Journal Information:
Physical Review E, Vol. 96, Issue 1; ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English

References (30)

dc-Magnetic-Field Generation in Unmagnetized Shear Flows journal July 2013
Extreme particle acceleration in the microquasar Cygnus X-3 journal November 2009
Detection of TeV photons from the active galaxy Markarian 421 journal August 1992
Extremely rapid bursts of TeV photons from the active galaxy Markarian 421 journal September 1996
Shedding New Light on the 3C 273 Jet with the Spitzer Space Telescope journal September 2006
New Chandra Observations of the Jet in 3C 273. I. Softer X‐Ray than Radio Spectra and the X‐Ray Emission Mechanism journal September 2006
Validation of a Turbulent Kelvin-Helmholtz Shear Layer Model Using a High-Energy-Density OMEGA Laser Experiment journal October 2012
Slow down of a globally neutral relativistic e e + beam shearing the vacuum journal November 2015
Nonlinear evolution of the magnetized Kelvin-Helmholtz instability: From fluid to kinetic modeling journal October 2013
Electron-scale shear instabilities: magnetic field generation and particle acceleration in astrophysical jets journal March 2014
Magnetic Field Generation in Core-Sheath jets via the Kinetic Kelvin-Helmholtz Instability journal September 2014
Transverse electron-scale instability in relativistic shear flows journal August 2015
Radiation from relativistic shocks in turbulent magnetic fields journal April 2011
Large-Scale Magnetic Field Generation via the Kinetic Kelvin-Helmholtz Instability in Unmagnetized Scenarios journal January 2012
X-ray Generation in Strongly Nonlinear Plasma Waves journal September 2004
Synthetic Spectra from Particle-In-Cell Simulations of Relativistic Collisionless Shocks journal November 2009
Virtual detector of synchrotron radiation (VDSR) - A C++ parallel code for particle tracking and radiation calculation
  • Rykovanov, S. G.; Chen, M.; Geddes, C. G. R.
  • ADVANCED ACCELERATOR CONCEPTS: 15th Advanced Accelerator Concepts Workshop, AIP Conference Proceedings https://doi.org/10.1063/1.4773729
conference January 2013
photon-plasma : A modern high-order particle-in-cell code journal June 2013
Radiation from accelerated particles in relativistic jets with shocks, shear-flow, and reconnection journal January 2013
Modelling radiation emission in the transition from the classical to the quantum regime journal November 2015
How to test and verify radiation diagnostics simulations within particle-in-cell frameworks
  • Pausch, R.; Debus, A.; Widera, R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 740 https://doi.org/10.1016/j.nima.2013.10.073
journal March 2014
Modeling Extragalactic jets journal September 1998
Three-Dimensional Relativistic Magnetohydrodynamic Simulations of the Kelvin-Helmholtz Instability: Magnetic Field Amplification by a Turbulent Dynamo journal January 2009
PIConGPU: A Fully Relativistic Particle-in-Cell Code for a GPU Cluster journal October 2010
Theory of “Jitter” Radiation from Small‐Scale Random Magnetic Fields and Prompt Emission from Gamma‐Ray Burst Shocks journal September 2000
Kelvin-Helmholtz Turbulence Associated with Collisionless Shocks in Laser Produced Plasmas journal May 2012
Developed turbulence and nonlinear amplification of magnetic fields in laboratory and astrophysical plasmas journal June 2015
An origin of the radio jet in M87 at the location of the central black hole journal September 2011
V-Fastr: the vlba fast Radio Transients Experiment journal June 2011
The physics of gamma-ray bursts journal January 2005

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