Particle Acceleration and Synchrotron Self-Compton Emission in Blazar Jets. I. An Application to Quiescent Emission
Particle Acceleration and Synchrotron Self-Compton Emission in Blazar Jets. I. An Application to Quiescent Emission
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Blazer 射流中的粒子加速和同步加速器自康普顿发射。
DOI:
10.3847/1538-4357/ab02fb
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发表时间:
2019-02
影响因子:
4.9
通讯作者:
Bai J M
中科院分区:
文献类型:
--
作者:
Zheng Y G;Kang S J;Yang C Y;Bai J M
There are still some important unanswered questions about the detailed particle acceleration and escape occurring during quiescent epochs. As a result, the particle distribution that is adopted in the blazar quiescent spectral model has numerous unconstrained shapes. To help remedy this problem, we introduce an analytical particle transport model to reproduce the quiescent broadband spectral energy distribution of blazars. In this model, the exact electron distribution is solved from a generalized transport equation that contains the terms describing the first-order and second-order Fermi acceleration, the escape of particles due to both advection and spatial diffusion, and energy losses due to synchrotron emission and inverse-Compton scattering of an assumed soft photon field. We suggest that advection is a significant escape mechanism in blazar jets. We find that in our model, the advection process tends to harden the particle distribution, which enhances the high-energy components of the resulting synchrotron and synchrotron self-Compton spectra from the jets. Our model is able to roughly reproduce the observed spectra of the extreme BL Lac object 1ES 0414+009 with reasonable assumptions about the physical parameters.
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DOI:
10.1086/176631
发表时间:
1995-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
C. Dermer;James A. Miller;Hui Li
通讯作者:
C. Dermer;James A. Miller;Hui Li
DOI:
10.1046/j.1365-8711.1999.02812.x
发表时间:
1999-02
影响因子:
4.8
作者:
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通讯作者:
W. Bednarek;R. Protheroe
DOI:
10.1063/1.3076711
发表时间:
2009-01
期刊:
--
影响因子:
--
作者:
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通讯作者:
J. Tammi;P. Duffy
DOI:
10.1007/978-1-4020-6055-7
发表时间:
2007
期刊:
--
影响因子:
--
作者:
Sergey Lebedev
通讯作者:
Sergey Lebedev
影响因子:
3.5
作者:
F. Reif;S. Rice
通讯作者:
F. Reif;S. Rice