Magnetic field production via the Weibel instability in interpenetrating plasma flows

被引：29

作者：

Huntington, C. M. ^{[1
]}

Manuel, M. J. -E. ^{[2
]}

Ross, J. S. ^{[1
]}

Wilks, S. C. ^{[1
]}

Fiuza, F. ^{[3
]}

Rinderknecht, H. G. ^{[1
]}

Park, H. -S. ^{[1
]}

Gregori, G. ^{[4
]}

Higginson, D. P. ^{[1
]}

Park, J. ^{[5
]}

Pollock, B. B. ^{[1
]}

Remington, B. A. ^{[1
]}

Ryutov, D. D. ^{[1
]}

Ruyer, C. ^{[3
]}

Sakawa, Y. ^{[6
]}

Sio, H. ^{[7
]}

Spitkovsky, A. ^{[5
]}

Swadling, G. F. ^{[1
]}

Takabe, H. ^{[6
]}

Zylstra, A. B. ^{[8
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[2] Univ Michigan, Ann Arbor, MI 48109 USA

[3] Stanford Linear Accelerator Lab, Menlo Pk, CA 94025 USA

[4] Univ Oxford, Parks Rd, Oxford OX1 3PU, England

[5] Princeton Univ, Princeton, NJ 08544 USA

[6] Osaka Univ, Osaka, Japan

[7] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[8] Los Alamos Natl Lab, Los Alamos, NM 87507 USA

来源：

PHYSICS OF PLASMAS | 2017年 / 24卷 / 04期

关键词：

RELATIVISTIC COLLISIONLESS SHOCKS; PARTICLE-ACCELERATION; SUPERNOVA-REMNANT; COSMIC-RAYS; GENERATION; SIMULATIONS; GROWTH;

D O I：

10.1063/1.4982044

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Many astrophysical systems are effectively "collisionless," that is, the mean free path for collisions between particles is much longer than the size of the system. The absence of particle collisions does not preclude shock formation, however, as shocks can be the result of plasma instabilities that generate and amplify electromagnetic fields. The magnetic fields required for shock formation may either be initially present, for example, in supernova remnants or young galaxies, or they may be self-generated in systems such as gamma-ray bursts (GRBs). In the case of GRB outflows, the Weibel instability is a candidate mechanism for the generation of sufficiently strong magnetic fields to produce shocks. In experiments on the OMEGA Laser, we have demonstrated a quasi-collisionless system that is optimized for the study of the non-linear phase of Weibel instability growth. Using a proton probe to directly image electromagnetic fields, we measure Weibel-generated magnetic fields that grow in opposing, initially unmagnetized plasma flows. The collisionality of the system is determined from coherent Thomson scattering measurements, and the data are compared to similar measurements of a fully collisionless system. The strong, persistent Weibel growth observed here serves as a diagnostic for exploring large-scale magnetic field amplification and the microphysics present in the collisional-collisionless transition. Published by AIP Publishing.

引用

页数：7

共 50 条

[21] The generation of magnetic fields by the Weibel instability
Fujita, Y.
Kato, T. N.
ASTRONOMISCHE NACHRICHTEN, 2006, 327 (5-6) : 443 - 447
[22] MAGNETIC FIELD GENERATION BY BIERMANN BATTERY AND WEIBEL INSTABILITY IN LABORATORY SHOCK WAVES
Gregori, G.
Miniati, F.
Reville, B.
Drake, R. P.
ECLA: EUROPEAN CONFERENCE ON LABORATORY ASTROPHYSICS, 2013, 58 : 23 - +
[23] Electron Weibel instability of plasma with thermal anisotropy
Borodachev, L. V.
Kolomiets, D. O.
MOSCOW UNIVERSITY PHYSICS BULLETIN, 2010, 65 (02) : 81 - 85
[24] Magnetic field advection in two interpenetrating plasma streams
Ryutov, D. D.
Kugland, N. L.
Levy, M. C.
Plechaty, C.
Ross, J. S.
Park, H. S.
PHYSICS OF PLASMAS, 2013, 20 (03)
[25] Electron Weibel instability of plasma with thermal anisotropy
L. V. Borodachev
D. O. Kolomiets
Moscow University Physics Bulletin, 2010, 65 : 81 - 85
[26] Kinetic saturation of the Weibel instability in a collisionless plasma
Califano, F.
Pegoraro, F.
Bulanov, S.V.
Mangeney, A.
Physical Review E. Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, 1998, 57 (06):
[27] Nonlocal effects in Weibel instability and two stream instability in a plasma
Kumar, Asheel
OPTIK, 2019, 178 : 251 - 255
[28] Kinetic saturation of the Weibel instability in a collisionless plasma
Califano, F
Pegoraro, F
Bulanov, SV
Mangeney, A
PHYSICAL REVIEW E, 1998, 57 (06): : 7048 - 7059
[29] Weibel instability in the field of a short laser pulse
Grishkov, V. E.
Uryupin, S. A.
PLASMA PHYSICS REPORTS, 2013, 39 (03) : 236 - 242
[30] INSTABILITY OF AN AFTERGLOW PLASMA IN A MAGNETIC FIELD
BULANIN, VV
GOLANT, VE
ZHILINSK.AP
SOVIET PHYSICS TECHNICAL PHYSICS-USSR, 1969, 14 (05): : 712 - &

← 1 2 3 4 5 →