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A model of fast radio bursts: collisions between episodic magnetic blobs

文献类型：期刊论文

作者Li, LB; Li, B; Li B(李兵); Geng, JJ; Huang, YF
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期2018
卷号18期号:6页码:61
ISSN号1674-4527
关键词accretion accretion disks magnetic reconnection radio continuum: general
DOI10.1088/1674-4527/18/6/61
文献子类Article
英文摘要Fast radio bursts (FRBs) are bright radio pulses from the sky with millisecond durations and Jansky-level flux densities. Their origins are still largely uncertain. Here we suggest a new model for FRBs. We argue that the collision of a white dwarf with a black hole can generate a transient accretion disk, from which powerful episodic magnetic blobs will be launched. The collision between two consecutive magnetic blobs can result in a catastrophic magnetic reconnection, which releases a large amount of free magnetic energy and forms a forward shock. The shock propagates through the cold magnetized plasma within the blob in the collision region, radiating through the synchrotron maser mechanism, which is responsible for a non-repeating FRB signal. Our calculations show that the theoretical energetics, radiation frequency, duration timescale and event rate can be very consistent with the observational characteristics of FRBs.
WOS关键词ADVECTION-DOMINATED ACCRETION ; NEUTRON-STARS ; BLACK-HOLES ; HOST GALAXY ; POPULATION ; DISKS ; JETS
WOS研究方向Astronomy & Astrophysics
语种英语
CSCD记录号CSCD:6259429
WOS记录号WOS:000438414500001
源URL[http://ir.ihep.ac.cn/handle/311005/286104]  
专题高能物理研究所_粒子天体物理中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714		 Li, LB,Li, B,Li B,et al. A model of fast radio bursts: collisions between episodic magnetic blobs[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(6):61.
APA Li, LB,Li, B,李兵,Geng, JJ,&Huang, YF.(2018).A model of fast radio bursts: collisions between episodic magnetic blobs.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(6),61.
MLA Li, LB,et al."A model of fast radio bursts: collisions between episodic magnetic blobs".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.6(2018):61.

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来源：高能物理研究所

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