Testing one-zone synchrotron-self-Compton models with spectral energy distributions of Mrk 421
Zhu, QQ; Yan DH(闫大海); Yan, DH; Zhang, PF; Yin, QQ; Zhang, L; Zhang, SN; Yin QQ(尹倩青); Zhang SN(张双南)
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2016
卷号463期号:4页码:4481-4489
关键词radiation mechanisms: non-thermal galaxies: jets gamma rays: galaxies
DOI10.1093/mnras/stw2346
通讯作者张双南
文章类型Article
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.
关键词[WOS]EXTRAGALACTIC BACKGROUND LIGHT ; LOG-PARABOLIC SPECTRA ; GAMMA-RAY EMISSION ; BL-LAC OBJECTS ; PARTICLE-ACCELERATION ; 3C 279 ; STOCHASTIC ACCELERATION ; ELECTRON ACCELERATION ; PHYSICAL-PROPERTIES ; EMITTING ELECTRONS
语种英语
WOS记录号WOS:000393568200073
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260797
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Zhu, QQ,Yan DH,Yan, DH,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, QQ.,闫大海.,Yan, DH.,Zhang, PF.,Yin, QQ.,...&张双南.(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, QQ,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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