English
Related papers

Related papers: Relativistic Shocks: Particle Acceleration and Mag…

200 papers

Shock acceleration is an ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities) created in collisionless shocks are responsible for particle…

Astrophysics · Physics 2015-06-24 K. -I. Nishikawa , P. Hardee , C. B. Hededal , G. Richardson , R. Preece , H. Sol , G. J. Fishman

Shock acceleration is an ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities) created in collisionless shocks are responsible for particle…

Astrophysics · Physics 2009-11-10 K. -I. Nishikawa , P. Hardee , G. Richardson , R. Preece , H. Sol , G. J. Fishman

Shock acceleration is an ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., the Buneman instability, two-streaming instability, and the Weibel instability) created in the shocks are…

Astrophysics · Physics 2009-11-10 K. -I. Nishikawa , P. Hardee , G. Richardson , R. Preece , H. Sol , G. J. Fishman

Shock acceleration is a ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities) created in collisionless shocks are responsible for particle…

Astrophysics · Physics 2010-11-11 K. -I. Nishikawa , P. Hardee , C. B. Hededal , G. Richardson , H. Sol , R. Preece , G. J. Fishman

Shock acceleration is a ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., Buneman, Weibel and other two-stream instabilities) created in collisionless shocks are responsible for particle…

Astrophysics · Physics 2007-05-23 K. -I. Nishikawa , P. Hardee , C. B. Hededal , G. Richardson , H. Sol , R. Preece , G. J. Fishman

Shock acceleration is an ubiquitous phenomenon in astrophysical plasmas. Plasma waves and their associated instabilities (e.g., the Buneman instability, two-streaming instability, and the Weibel instability) created in the shocks are…

Astrophysics · Physics 2009-11-07 K. -I. Nishikawa , P. Hardee , G. Richardson , R. Preece , H. Sol , G. J. Fishman

Plasma instabilities (e.g., Buneman, Weibel and other two-stream instabilities) created in collisionless shocks may be responsible for particle (electron, positron, and ion) acceleration. Using a 3-D relativistic electromagnetic particle…

Astrophysics · Physics 2009-11-13 K. -I. Nishikawa , P. E. Hardee , C. B. Hededal , G. J. Fishman

Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks, e.g., active galactic nuclei (AGNs), gamma-ray bursts (GRBs), and Galactic microquasar systems usually have power-law emission spectra. Recent…

Astrophysics · Physics 2009-06-23 K. -I. Nishikawa , Y. Mizuno , G. J. Fishman , P. Hardee

Weibel instability created in collisionless shocks is responsible for particle (electron, positron, and ion) acceleration. Using a 3-D relativistic electromagnetic particle (REMP) code, we have investigated particle acceleration associated…

Plasma instabilities (e.g., Buneman, Weibel and other two-stream instabilities) excited in collisionless shocks are responsible for particle (electron, positron, and ion) acceleration. Using a new 3-D relativistic particle-in-cell code, we…

High Energy Astrophysical Phenomena · Physics 2011-02-11 K. -I. Nishikawa , J. Niemiec , P. E. Hardee , M. Medvedev , H. Sol , Y. Mizuno , B. Zhang , M. Pohl , M. Oka , D. H. Hartmann

Using our new 3-D relativistic electromagnetic particle (REMP) code parallelized with MPI, we investigated long-term particle acceleration associated with a relativistic electron-positron jet propagating in an unmagnetized ambient…

High Energy Astrophysical Phenomena · Physics 2011-01-26 K. -I. Nishikawa , J. Niemiec , M. Medvedev , B. Zhang , P. Hardee , A. Nordlund , J. Frederiksen , Y. Mizuno , H. Sol , M. Pohl , D. H. Hartmann , M. Oka , G. J. Fishman

Using our new 3-D relativistic electromagnetic particle (REMP) code parallelized with MPI, we investigated long-term particle acceleration associated with a relativistic electron-positron jet propagating in an unmagnetized ambient…

High Energy Astrophysical Phenomena · Physics 2014-11-20 K. -I. Nishikawa , J. Niemiec , M. Medvedev , B. Zhang , P. Hardee , Y. Mizuno , A. Nordlund , J. Frederiksen , H. Sol , M. Pohl , D. H. Hartmann , J. F. Fishman

lasma instabilities excited in collisionless shocks are responsible for particle acceleration. We have investigated the particle acceleration and shock structure associated with an unmagnetized relativistic electron-positron jet propagating…

High Energy Astrophysical Phenomena · Physics 2015-06-03 K. -I. Nishikawa , E. J. Choi , K. Min , P. Hardee , Y. Mizuno , B. Zhang , J. Niemiec , M. Medvedev , A. Nordlund , J. Fredriksen , M. Pohl , H. Sol , D. H. Hartmann , G. J. Fishman

Using our new 3-D relativistic electromagnetic particle (REMP) code parallelized with MPI, we have investigated long-term particle acceleration associated with an relativistic electron-positron jet propagating in an unmagnetized ambient…

High Energy Astrophysical Phenomena · Physics 2009-06-25 K. -I. Nishikawa , M. Medvedev , B. Zhang , P. Hardee , J. Niemiec , A. Nordlund , J. Frederiksen , Y. Mizuno , H. Sol , G. J. Fishman

Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks e.g. gamma-ray bursts (GRBs) active galactic nuclei (AGNs) and microquasars commonly exhibit power-law emission spectra. Recent PIC simulations…

Astrophysics · Physics 2009-06-23 K. -I. Nishikawa , P. Hardee , Y. Mizuno , M. Medvedev , B. Zhang , D. H. Hartmann , G. J. Fishman

Nonthermal radiation observed from astrophysical systems containing relativistic jets and shocks, e.g., gamma-ray bursts (GRBs), active galactic nuclei (AGNs), and microquasars commonly exhibit power-law emission spectra. Recent PIC…

We have investigated particle acceleration and emission from shocks and shear flows associated with an unmagnetized relativistic jet plasma propagating into an unmagnetized ambient plasma. Strong electro-magnetic fields are generated in the…

High Energy Astrophysical Phenomena · Physics 2014-12-23 K. -I. Nishikawa , P. Hardee , I. Dutan , B. Zhang , A. Meli , E. J. Choi , K. Min , J. Niemiec , Y. Mizuno , M. Medvedev , A. Nordlund , J. T. Frederiksen , H. Sol , M. Pohl , D. Hartmann

What are the mechanisms of particle acceleration and radiation, as well as magnetic field build up and decay in relativistic shocks are open questions with important implications to various phenomena in high energy astrophysics. While the…

High Energy Astrophysical Phenomena · Physics 2016-06-06 Evgeny V. Derishev , Tsvi Piran

Plasma outflows from gamma-ray bursts, supernovae, and relativistic jets, in general, interact with the surrounding medium through collisionless shocks. The microphysics of such shocks are still poorly understood, which, potentially, can…

Astrophysics · Physics 2009-11-10 Christian Busk Hededal , Ken-Ichi Nishikawa

It is shown that collisionless shock waves can be driven in unmagnetized electron-positron plasmas by performing a two-dimensional particle-in-cell simulation. At the shock transition region, strong magnetic fields are generated by a…

Astrophysics · Physics 2008-03-31 Tsunehiko N. Kato
‹ Prev 1 2 3 10 Next ›