Weibel turbulence in laboratory experiments and GRB/SN shocks / Medvedev Mikhail V. // ASTROPHYSICS AND SPACE SCIENCE. - 2007. - V. 307, l. 1-3. - P. 245-250.

ISSN/EISSN:

0004-640X / нет данных

Type:

Article; Proceedings Paper

Abstract:

It has recently been realized that the Weibel instability plays a major role in the formation and dynamics of astrophysical shocks of gamma-ray bursts and supernovae. Thanks to technological advances in the recent years, experimental studies of the Weibel instability are now possible in laser-plasma interaction devices. We, thus, have a unique opportunity to model and study astrophysical conditions in laboratory experiments - a key goal of the Laboratory Astrophysics program. Here we briefly review the theory of strong non-magnetized collisionless GRB and SN shocks, emphasizing the crucial role of the Weibel instability and discuss the properties of radiation emitted by (isotropic) electrons moving through the Weibel-generated magnetic fields, which is referred to as the jitter radiation. We demonstrate that the jitter radiation field is anisotropic with respect to the direction of the Weibel current filaments and that its spectral and polarization characteristics are determined by microphysical plasma parameters. We stress that the spectral analysis can be used for accurate diagnostics of the plasma conditions in laboratory experiments and in astrophysical GRB and SN shocks.

Author keywords:

Weibel instability; plasma physics; radiation from plasma; plasma diagnostics; plasma astrophysics; collisionless shocks MAGNETIC-FIELD GENERATION; RAY BURST SHOCKS; PARTICLE-ACCELERATION; PROMPT EMISSION; PLASMA; INSTABILITY; EVOLUTION; WAVES

DOI:

10.1007/s10509-006-9288-4

Web of Science ID:

ISI:000244995100046

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN
Note	6th International Conference on High Energy Density Laboratory Astrophysics, Rich Univ, Houston, TX, MAR 11-14, 2006
Publisher	SPRINGER
Address	VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
Language	English
Keywords-Plus	MAGNETIC-FIELD GENERATION; RAY BURST SHOCKS; PARTICLE-ACCELERATION; PROMPT EMISSION; PLASMA; INSTABILITY; EVOLUTION; WAVES
Research-Areas	Astronomy \& Astrophysics
Web-of-Science-Categories	Astronomy \& Astrophysics
Author-Email	medvedev@ku.edu
Number-of-Cited-References	15
Usage-Count-Since-2013	3
Journal-ISO	Astrophys. Space Sci.
Doc-Delivery-Number	147HX