IHEP OpenIR  > 粒子天体物理中心
NEAR-EQUIPARTITION JETS WITH LOG-PARABOLA ELECTRON ENERGY DISTRIBUTION AND THE BLAZAR SPECTRAL-INDEX DIAGRAMS
Dermer, CD; Yan DH(闫大海); Yan, DH; Zhang, L; Finke, JD; Lott, B
2015
发表期刊ASTROPHYSICAL JOURNAL
卷号809期号:2页码:174
文章类型Article
摘要Fermi-LAT analyses show that the gamma-ray photon spectral indices Gamma(gamma) of a large sample of blazars correlate with the vF(v) peak synchrotron frequency ns according to the relation Gamma(gamma) =d-k log v(s). The same function, with different constants d and k, also describes the relationship between Gamma(gamma) and peak Compton frequency nC. This behavior is derived analytically using an equipartition blazar model with a log-parabola description of the electron energy distribution (EED). In the Thomson regime, k=k(EC)=3b/4 for external Compton (EC) processes and k=k(SSC)=9b/16for synchrotron self-Compton (SSC) processes, where b is the log-parabola width parameter of the EED. The BL Lac object Mrk 501 is fit with a synchrotron/SSC model given by the log-parabola EED, and is best fit away from equipartition. Corrections are made to the spectral-index diagrams for a low-energy power-law EED and departures from equipartition, as constrained by absolute jet power. Analytic expressions are compared with numerical values derived from self-Compton and EC scattered gamma-ray spectra from Lya broad-line region and IR target photons. The Gamma(gamma) versus ns behavior in the model depends strongly on b, with progressively and predictably weaker dependences on gamma-ray detection range, variability time, and isotropic gamma-ray luminosity. Implications for blazar unification and blazars as ultra-high energy cosmic-ray sources are discussed. Arguments by Ghisellini et al. that the jet power exceeds the accretion luminosity depend on the doubtful assumption that we are viewing at the Doppler angle.
关键词acceleration of particles BL Lacertae objects: general galaxies: jets gamma rays: galaxies quasars: general radiation mechanisms: non-thermal
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/809/2/174
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000361655100067
引用统计
被引频次:10[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/311005/228715
专题粒子天体物理中心
推荐引用方式
GB/T 7714
Dermer, CD,Yan DH,Yan, DH,et al. NEAR-EQUIPARTITION JETS WITH LOG-PARABOLA ELECTRON ENERGY DISTRIBUTION AND THE BLAZAR SPECTRAL-INDEX DIAGRAMS[J]. ASTROPHYSICAL JOURNAL,2015,809(2):174.
APA Dermer, CD,闫大海,Yan, DH,Zhang, L,Finke, JD,&Lott, B.(2015).NEAR-EQUIPARTITION JETS WITH LOG-PARABOLA ELECTRON ENERGY DISTRIBUTION AND THE BLAZAR SPECTRAL-INDEX DIAGRAMS.ASTROPHYSICAL JOURNAL,809(2),174.
MLA Dermer, CD,et al."NEAR-EQUIPARTITION JETS WITH LOG-PARABOLA ELECTRON ENERGY DISTRIBUTION AND THE BLAZAR SPECTRAL-INDEX DIAGRAMS".ASTROPHYSICAL JOURNAL 809.2(2015):174.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
660.pdf(1276KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Dermer, CD]的文章
[闫大海]的文章
[Yan, DH]的文章
百度学术
百度学术中相似的文章
[Dermer, CD]的文章
[闫大海]的文章
[Yan, DH]的文章
必应学术
必应学术中相似的文章
[Dermer, CD]的文章
[闫大海]的文章
[Yan, DH]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。