Electrostatic shock waves in the laboratory and astrophysics: similarities and differences
Electrostatic shock waves in the laboratory and astrophysics: similarities and differences
复制标题
实验室中的静电冲击波和天体物理学:异同
DOI:
10.1088/1361-6587/aa8c8f
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发表时间:
2018
影响因子:
2.2
通讯作者:
Dieckmann M
中科院分区:
文献类型:
--
作者:
Dieckmann M
Contemporary lasers allow us to create shocks in the laboratory that propagate at a speed that matches that of energetic astrophysical shocks like those that ensheath supernova blast shells. The rapid growth time of the shocks and the spatio-temporal resolution, with which they can be sampled, allow us to identify the processes that are involved in their formation and evolution. Some laser-generated unmagnetized shocks are mediated by collective electrostatic forces and effects caused by binary collisions between particles can be neglected. Hydrodynamic models, which are valid for many large-scale astrophysical shocks, assume that collisions enforce a local thermodynamic equilibrium in the medium; laser-generated shocks are thus not always representative for astrophysical shocks. Laboratory studies of shocks can improve the understanding of their astrophysical counterparts if we can identify processes that affect electrostatic shocks and hydrodynamic shocks alike. An example is the nonlinear thin-shell instability (NTSI). We show that the NTSI destabilises collisionless and collisional shocks by the same physical mechanism.
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影响因子:
2.2
作者:
M. Dieckmann;H. Ahmed;G. Sarri;D. Doria;I. Kourakis;L. Romagnani;M. Pohl;M. Borghesi
通讯作者:
M. Dieckmann;H. Ahmed;G. Sarri;D. Doria;I. Kourakis;L. Romagnani;M. Pohl;M. Borghesi
影响因子:
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作者:
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M. Malkov
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
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通讯作者:
B. Marks