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Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421
Zhu, Qianqian1; Yan, Dahai2,3; Zhang, Pengfei4; Yin, Qian-Qing3,5; Zhang, Li1; Zhang, Shuang-Nan3
2016-12-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume463Issue:4Pages:4481-4489
Corresponding AuthorYan, Dahai(yandahai@ynao.ac.cn) ; Zhang, Li(lizhang@ynu.edu.cn) ; Zhang, Shuang-Nan(zhangsn@ihep.ac.cn)
AbstractWe 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.
Keywordradiation mechanisms: non-thermal galaxies: jets gamma rays: galaxies
DOI10.1093/mnras/stw2346
WOS KeywordEXTRAGALACTIC BACKGROUND LIGHT ; LOG-PARABOLIC SPECTRA ; GAMMA-RAY EMISSION ; BL-LAC OBJECTS ; PARTICLE-ACCELERATION ; 3C 279 ; STOCHASTIC ACCELERATION ; ELECTRON ACCELERATION ; PHYSICAL-PROPERTIES ; EMITTING ELECTRONS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000393568200073
PublisherOXFORD UNIV PRESS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23313
Collection中国科学院紫金山天文台
Corresponding AuthorYan, Dahai; Zhang, Li; Zhang, Shuang-Nan
Affiliation1.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
Recommended Citation
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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