Numerical simulations of energy transfer in two collisionless interpenetrating plasmas
Ion stream instabilities are essential for collisionless shock formation as seen in astrophysics. Weakly relativistic shocks are considered as candidates for sources of high energy cosmic rays. Laboratory experiments may provide a better understanding of this phenomenon. High intensity short pulse l...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2013-11-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20135915003 |
| _version_ | 1818980501499674624 |
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| author | Davis S. Capdessus R. d'Humières E. Brantov A.V. Bochkarev S. Tikhonchuk V. |
| author_facet | Davis S. Capdessus R. d'Humières E. Brantov A.V. Bochkarev S. Tikhonchuk V. |
| author_sort | Davis S. |
| collection | DOAJ |
| description | Ion stream instabilities are essential for collisionless shock formation as seen in astrophysics. Weakly relativistic shocks are considered as candidates for sources of high energy cosmic rays. Laboratory experiments may provide a better understanding of this phenomenon. High intensity short pulse laser systems are opening possibilities for efficient ion acceleration to high energies. Their collision with a secondary target could be used for collisionless shock formation. In this paper, using particle-in-cell simulations we are studying interaction of a sub-relativistic, laser created proton beam with a secondary gas target. We show that the ion bunch initiates strong electron heating accompanied by the Weibel-like filamentation and ion energy losses. The energy repartition between ions, electrons and magnetic fields are investigated. This yields insight on the processes occurring in the interstellar medium (ISM) and gamma-ray burst afterglows. |
| first_indexed | 2024-12-20T17:16:26Z |
| format | Article |
| id | doaj.art-5f59eda0bf0b4643a3b3f75440bfc3f8 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-20T17:16:26Z |
| publishDate | 2013-11-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-5f59eda0bf0b4643a3b3f75440bfc3f82022-12-21T19:32:00ZengEDP SciencesEPJ Web of Conferences2100-014X2013-11-01591500310.1051/epjconf/20135915003Numerical simulations of energy transfer in two collisionless interpenetrating plasmasDavis S.Capdessus R.d'Humières E.Brantov A.V.Bochkarev S.Tikhonchuk V.Ion stream instabilities are essential for collisionless shock formation as seen in astrophysics. Weakly relativistic shocks are considered as candidates for sources of high energy cosmic rays. Laboratory experiments may provide a better understanding of this phenomenon. High intensity short pulse laser systems are opening possibilities for efficient ion acceleration to high energies. Their collision with a secondary target could be used for collisionless shock formation. In this paper, using particle-in-cell simulations we are studying interaction of a sub-relativistic, laser created proton beam with a secondary gas target. We show that the ion bunch initiates strong electron heating accompanied by the Weibel-like filamentation and ion energy losses. The energy repartition between ions, electrons and magnetic fields are investigated. This yields insight on the processes occurring in the interstellar medium (ISM) and gamma-ray burst afterglows.http://dx.doi.org/10.1051/epjconf/20135915003 |
| spellingShingle | Davis S. Capdessus R. d'Humières E. Brantov A.V. Bochkarev S. Tikhonchuk V. Numerical simulations of energy transfer in two collisionless interpenetrating plasmas EPJ Web of Conferences |
| title | Numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| title_full | Numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| title_fullStr | Numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| title_full_unstemmed | Numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| title_short | Numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| title_sort | numerical simulations of energy transfer in two collisionless interpenetrating plasmas |
| url | http://dx.doi.org/10.1051/epjconf/20135915003 |
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