The extension of variability properties in gamma-ray bursts to blazars

被引：20

作者：

Wu, Qingwen ^{[1
]}

Zhang, Bing ^{[2
,3
,4
]}

Lei, Wei-Hua ^{[1
]}

Zou, Yuan-Chuan ^{[1
]}

Liang, En-Wei ^{[5
,6
,7
]}

Cao, Xinwu ^{[8
,9
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Phys, Wuhan 430074, Peoples R China

[2] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA

[3] Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China

[4] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[5] Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China

[6] Guangxi Univ, GXU NAOC Ctr Astrophys & Space Sci, Nanning 530004, Peoples R China

[7] Guangxi Key Lab Relativist Astrophys, Nanning 530004, Peoples R China

[8] Chinese Acad Sci, Shanghai Astron Observ, SHAO XMU Joint Ctr Astrophys, Shanghai 200030, Peoples R China

[9] Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2016年 / 455卷 / 01期

关键词：

methods: statistical; gamma-ray burst: general; BL Lacertae objects: general; galaxies: jets; LORENTZ-FACTOR; EMISSION; POWER; AFTERGLOW; JETS; BINARIES; SPECTRA; SCALES; PLANE; MODEL;

D O I：

10.1093/mnrasl/slv136

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Both gamma-ray bursts (GRBs) and blazars have relativistic jets pointing at a small angle from our line of sight. Several recent studies suggested that these two kinds of sources may share similar jet physics. In this work, we explore the variability properties for GRBs and blazars as a whole. We find that the correlation between minimum variability time-scale (MTS) and Lorentz factor, Gamma, as found only in GRBs by Sonbas et al. can be extended to blazars with a joint correlation of MTS. alpha Gamma(-4.7 +/- 0.3). The same applies to the MTS. L-gamma(-1.0 +/- 0.1). correlation as found in GRBs, which can be well extended into blazars as well. These results provide further evidence that the jets in these two kinds of sources are similar despite of the very different mass scale of their central engines. Further investigations of the physical origin of these correlations are needed, which can shed light on the nature of the jet physics.

引用

页码：L1 / L5

页数：5

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