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Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421

文献类型：期刊论文

作者Zhu, Qianqian1; Yan, Dahai2,3; Zhang, Pengfei4; Yin, Qian-Qing3,5; Zhang, Li1; Zhang, Shuang-Nan3
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2016-12-01
卷号463期号:4页码:4481-4489
ISSN号0035-8711
关键词radiation mechanisms: non-thermal galaxies: jets gamma rays: galaxies
DOI10.1093/mnras/stw2346
通讯作者Yan, Dahai(yandahai@ynao.ac.cn) ; Zhang, Li(lizhang@ynu.edu.cn) ; Zhang, Shuang-Nan(zhangsn@ihep.ac.cn)
英文摘要We test one-zone synchrotron self-Compton (SSC) models with high-quality multiwavelength spectral energy distribution (SED) data of Mrk 421. We use Markov chain Monte Carlo technique to fit 12 day-scale SEDs of Mrk 421 with one-zone SSC models. Three types of electron energy distribution (EED), a log-parabola (LP) EED, a power-law log-parabola (PLLP) EED and a broken power-law (BPL) EED, are assumed in fits. We find that the one-zone SSC model with the PLLP EED provides successful fits to all the 12 SEDs. However, the one-zone SSC model with the LP and BPL EEDs fail to provide acceptable fits to the highest energy X-ray data or GeV data in several states. We therefore conclude that the one-zone SSC model works well in explaining the SEDs of Mrk 421, and the PLLP EED is preferred over the LP and BPL EEDs for Mrk 421 during the flare in 2010 March. We derive magnetic field B' similar to 0.01 G, Doppler factor delta(D) similar to 30-50 and the curvature parameter of EED r similar to 1-10 in the model with the PLLP EED. The evolutions of model parameters are explored. The physical implications of our results are discussed.
WOS关键词EXTRAGALACTIC BACKGROUND LIGHT ; LOG-PARABOLIC SPECTRA ; GAMMA-RAY EMISSION ; BL-LAC OBJECTS ; PARTICLE-ACCELERATION ; 3C 279 ; STOCHASTIC ACCELERATION ; ELECTRON ACCELERATION ; PHYSICAL-PROPERTIES ; EMITTING ELECTRONS
WOS研究方向Astronomy & Astrophysics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:000393568200073
源URL[http://libir.pmo.ac.cn/handle/332002/23312]  
专题中国科学院紫金山天文台
通讯作者Yan, Dahai; Zhang, Li; Zhang, Shuang-Nan
作者单位1.Yunnan Univ, Dept Astron, Key Lab Astroparticle Phys Yunnan Prov, Kunming 650091, Peoples R China
2.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Qianqian,Yan, Dahai,Zhang, Pengfei,et al. Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,463(4):4481-4489.
APA Zhu, Qianqian,Yan, Dahai,Zhang, Pengfei,Yin, Qian-Qing,Zhang, Li,&Zhang, Shuang-Nan.(2016).Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,463(4),4481-4489.
MLA Zhu, Qianqian,et al."Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 463.4(2016):4481-4489.

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来源：紫金山天文台

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