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An explanation for 13 consecutive day activities of Mrk 421
Zheng YG(郑永刚)1,2,3,4; Yang CY(杨初源)1,4; Kang, Shi-Ju5; Bai JM(白金明)1,4
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2021
卷号21期号:1页码:12
DOI10.1088/1674-4527/21/1/8
产权排序第1完成单位
收录类别SCI
关键词radiation mechanisms: non-thermal BL Lacertae objects: individual: (Mrk 421) acceleration of particles
摘要

It is surprising to find an instance of migration in the peak positions of synchrotron spectral energy distribution components during the activity epochs of Markarian 421 (Mrk 421), accompanying an orphan flare at the X-ray and GeV-TeV gamma-ray bands. A geometric interpretation and standard shock or stochastic acceleration models of blazar emission have difficulty reproducing these observed behaviors. The present paper introduces a linear acceleration by integrating the reconnection electric field into the particle transport model for the observed behaviors of Mrk 421. We note that strong evidence for evolution in characteristic of multi-wavelength spectral energy distribution including shifting the peak frequency, accompanying an orphan flare at the X-ray and GeV-TeV gamma-ray bands provides an important electrostatic acceleration diagnostic in a blazar jet. Assuming suitable model parameters, we apply the results of the simulation to the 13-day flaring event in March 2010 of Mrk 421, concentrating on the evolution of multi-wavelength spectral energy distribution characteristic by shifting the peak frequency. It is clear that the ratio of the electric field and magnetic field strength plays an important role in temporal evolution of the peak frequency of synchrotron spectral energy distribution component. We suggest it is reasonable that the electrostatic acceleration is responsible for the evolution of multi-wavelength spectral energy distribution characteristic by shifting the peak frequency. Based on the model results, we assert that the peak frequency of the synchrotron spectral energy distribution component may signify a temporary characteristic of blazars, rather than a permanent one.

资助项目National Natural Science Foundation of China[11673060] ; National Natural Science Foundation of China[11763005] ; National Natural Science Foundation of China[11873043] ; National Natural Science Foundation of China[11991051] ; Specialized Research Fund for Shandong Provincial Key Laboratory[KLWH201804] ; Research Foundation for Scientific Elitists of the Department of Education of Guizhou Province[QJHKYZ[2018]068]
项目资助者National Natural Science Foundation of China[11673060, 11763005, 11873043, 11991051] ; Specialized Research Fund for Shandong Provincial Key Laboratory[KLWH201804] ; Research Foundation for Scientific Elitists of the Department of Education of Guizhou Province[QJHKYZ[2018]068]
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
出版地20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS记录号WOS:000616056200001
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/24142
专题南方基地
中国科学院天体结构与演化重点实验室
通讯作者Zheng YG(郑永刚)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China
2.Department of Physics, Yunnan Normal University, Kunming 650092, China
3.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment-Shandong University, Weihai 264209, China
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China
5.Department of Physics and Electronics Science, Liupanshui Normal University, Liupanshui 553004, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Zheng YG,Yang CY,Kang, Shi-Ju,et al. An explanation for 13 consecutive day activities of Mrk 421[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2021,21(1):12.
APA Zheng YG,Yang CY,Kang, Shi-Ju,&Bai JM.(2021).An explanation for 13 consecutive day activities of Mrk 421.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,21(1),12.
MLA Zheng YG,et al."An explanation for 13 consecutive day activities of Mrk 421".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 21.1(2021):12.
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