liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Multidimensional Simulations of Magnetic Field Amplification and Electron Acceleration to Near-Energy Equipartition With Ions by a Mildly Relativistic Quasi-Parallel Plasma Collision
Dublin Institute for Advanced Studies (DIAS), Dublin, Ireland.
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Vetenskaplig Visualisering)ORCID iD: 0000-0003-4055-0552
Dublin Institute for Advanced Studies (DIAS), Dublin, Ireland.
2010 (English)In: IEEE Transactions on Plasma Science, ISSN 0093-3813, E-ISSN 1939-9375, Vol. 38, no 10, 2985-2992 p.Article in journal (Refereed) Published
Abstract [en]

The energetic electromagnetic eruptions observed during the prompt phase of gamma-ray bursts are attributed to synchrotron emissions. The internal shocks moving through the ultrarelativistic jet, which is ejected by an imploding supermassive star, are the likely source of this radiation. Synchrotron emissions at the observed strength require the simultaneous presence of powerful magnetic fields and highly relativistic electrons. We explore with 1-D and 3-D relativistic particle-in-cell simulations the transition layer of a shock, which evolves out of the collision of two plasma clouds at a speed 0.9$c$ and in the presence of a quasi-parallel magnetic field. The cloud densities vary by a factor of 10. The number densities of ions and electrons in each cloud, which have the mass ratio 250, are equal. The peak Lorentz factor of the electrons is determined in the 1-D simulation, as well as the orientation and the strength of the magnetic field at the boundary of the two colliding clouds. The relativistic masses of the electrons and ions close to the shock transition layer are comparable as in previous work. The 3-D simulation shows rapid and strong plasma filamentation behind the transient precursor. The magnetic field component orthogonal to the initial field direction is amplified in both simulations to values that exceed those expected from the shock compression by over an order of magnitude. The forming shock is quasi-perpendicular due to this amplification. The simultaneous presence of highly relativistic electrons and strong magnetic fields will give rise to significant synchrotron emissions.

Place, publisher, year, edition, pages
2010. Vol. 38, no 10, 2985-2992 p.
Keyword [en]
PIC simulation, plasma shock, gamma-ray-bursts
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:liu:diva-60283DOI: 10.1109/TPS.2010.2063442ISI: 000283421500026OAI: oai:DiVA.org:liu-60283DiVA: diva2:355986
Note
©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. GC Murphy, Mark Eric Dieckmann and LOC Drury, Multidimensional Simulations of Magnetic Field Amplification and Electron Acceleration to Near-Energy Equipartition With Ions by a Mildly Relativistic Quasi-Parallel Plasma Collision, 2010, IEEE Transactions on Plasma Science, (38), 10, 2985-2992. http://dx.doi.org/10.1109/TPS.2010.2063442 Available from: 2010-10-09 Created: 2010-10-09 Last updated: 2017-11-03

Open Access in DiVA

fulltext(696 kB)370 downloads
File information
File name FULLTEXT01.pdfFile size 696 kBChecksum SHA-512
2a727d6177e21b6aae1433660591b263416ec9a352d3b20baf7a785dc1b225007b0da7142b4e76fa99088187cadd10b208a54efe6c18524514fcba2d6b1d3d48
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttp://ieeexplore.ieee.org/search/srchabstract.jsp?tp=&arnumber=5567172&queryText%3Ddieckmann+me%26openedRefinements%3D*%26sortType%3Ddesc_Publication+Year%26searchField%3DSearch+All

Authority records BETA

Dieckmann, Mark Eric

Search in DiVA

By author/editor
Dieckmann, Mark Eric
By organisation
Media and Information TechnologyThe Institute of Technology
In the same journal
IEEE Transactions on Plasma Science
Fusion, Plasma and Space Physics

Search outside of DiVA

GoogleGoogle Scholar
Total: 370 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 169 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf