GAMMA-RAY BURST PROMPT EMISSION: JITTER RADIATION IN STOCHASTIC MAGNETIC FIELD REVISITED

	GAMMA-RAY BURST PROMPT EMISSION: JITTER RADIATION IN STOCHASTIC MAGNETIC FIELD REVISITED
	Mao JR(毛基荣)1,2,3,4 ; Wang JC(王建成)3,4
刊名	ASTROPHYSICAL JOURNAL
	2011-04-10
卷号	731 期号:1
关键词	acceleration of particles gamma rays: general radiation mechanisms: non-thermal
ISSN号	0004-637X
通讯作者	Mao, JR (reprint author), Korea Astron & Space Sci Inst, Int Ctr Astrophys, 776 Daedeokdae Ro, Taejon 305348, South Korea.
产权排序	第三完成单位
英文摘要	We revisit the radiation mechanism of relativistic electrons in the stochastic magnetic field and apply it to the high-energy emissions of gamma-ray bursts (GRBs). We confirm that jitter radiation is a possible explanation for GRB prompt emission in the condition of a large electron deflection angle. In the turbulent scenario, the radiative spectral property of GRB prompt emission is decided by the kinetic energy spectrum of turbulence. The intensity of the random and small-scale magnetic field is determined by the viscous scale of the turbulent eddy. The microphysical parameters epsilon(e) and epsilon(B) can be obtained. The acceleration and cooling timescales are estimated as well. Due to particle acceleration in magnetized filamentary turbulence, the maximum energy released from the relativistic electrons can reach a value of about 10(14) eV. The GeV GRBs are possible sources of high-energy cosmic-ray.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	RELATIVISTIC COLLISIONLESS SHOCKS ; FULLY-DEVELOPED TURBULENCE ; HIGH-ENERGY EMISSION ; COSMIC-RAYS ; PARTICLE-ACCELERATION ; WEIBEL INSTABILITY ; LIGHT CURVES ; GRB 080916C ; FERMI OBSERVATIONS ; PLASMA SHOCKS
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/731/1/26/meta
语种	英语
WOS记录号	WOS:000289772800026
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5012]
专题	云南天文台_高能天体物理研究组云南天文台_中国科学院天体结构与演化重点实验室
作者单位	1.International Center for Astrophysics, Korea Astronomy and Space Science Institute, 776, Daedeokdae-ro, Yuseong-gu, Daejeon 305-348, Republic of Korea 2.INAF-Osservatorio Astronomico di Brera, Via Emilio Bianchi, 46, 23807 Merate (LC), Italy 3.Yunnan Observatory, Chinese Academy of Sciences, Kunming, Yunnan Province 650011, China 4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, China
推荐引用方式 GB/T 7714	Mao JR,Wang JC. GAMMA-RAY BURST PROMPT EMISSION: JITTER RADIATION IN STOCHASTIC MAGNETIC FIELD REVISITED[J]. ASTROPHYSICAL JOURNAL,2011,731(1).
APA	Mao JR,&Wang JC.(2011).GAMMA-RAY BURST PROMPT EMISSION: JITTER RADIATION IN STOCHASTIC MAGNETIC FIELD REVISITED.ASTROPHYSICAL JOURNAL,731(1).
MLA	Mao JR,et al."GAMMA-RAY BURST PROMPT EMISSION: JITTER RADIATION IN STOCHASTIC MAGNETIC FIELD REVISITED".ASTROPHYSICAL JOURNAL 731.1(2011).