The change of GRB polarization angles in the magnetic-dominated jet model
The change of GRB polarization angles in the magnetic-dominated jet model
复制标题
磁控射流模型中GRB极化角的变化
DOI:
10.1093/mnras/stu2051
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发表时间:
2014-05
影响因子:
4.8
通讯作者:
Lin Hai-Nan
中科院分区:
文献类型:
--
作者:
Chang Zhe;Lin Hai-Nan
The polarimetric measurement on the prompt phase of GRB 100826A shows that the polarization angle changes ∼90° between two adjacent time intervals. We will show that this phenomenon can be naturally interpreted in the framework of the magnetic-dominated jet (MDJ) model. The MDJ model suggests that the bulk Lorentz factor of the outflow increases as Γ ∝r1/3, until reaching a saturated value Γsat. Electrons move in the globally ordered magnetic field advected by the jet from the central engine and produce synchrotron photons. The polarized synchrotron photons travel alone the jet direction and then collide with the cold electrons at the front of the jet. After the Compton scattering process, these photons escape from the jet and are detected by the observer locating slightly off-axis. If photons are emitted before the bulk Lorentz factor saturates, the change of polarization angle is a natural result of the acceleration of the outflow.
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DOI:
10.1086/423163
发表时间:
2004-05
期刊:
The Astrophysical Journal
影响因子:
--
作者:
C. Wigger;W. Hajdas;K. Arzner;M. Güdel;A. Zehnder
通讯作者:
C. Wigger;W. Hajdas;K. Arzner;M. Güdel;A. Zehnder
影响因子:
64.8
作者:
J. Greiner;S. Klose;K. Reinsch;H. Schmid;R. Sari;D. Hartmann;C. Kouveliotou;A. Rau;E. Palazzi-E.-P
通讯作者:
J. Greiner;S. Klose;K. Reinsch;H. Schmid;R. Sari;D. Hartmann;C. Kouveliotou;A. Rau;E. Palazzi-E.-P
DOI:
10.1007/978-1-4020-2256-2_10
发表时间:
2004
期刊:
Progress in Astronomy
影响因子:
--
作者:
T. Lu;Yong-Feng Huang;Z. Dai;D. Wei
通讯作者:
T. Lu;Yong-Feng Huang;Z. Dai;D. Wei
影响因子:
64.8
作者:
I. Steele;C. Mundell;R. Smith;S. Kobayashi;C. G. Ari;Liverpool John Moore's University;U. Ferrara-U.-Ferrar
通讯作者:
I. Steele;C. Mundell;R. Smith;S. Kobayashi;C. G. Ari;Liverpool John Moore's University;U. Ferrara-U.-Ferrar
影响因子:
4.9
作者:
Lue, Hou-Jun;Zhang, Bing;Liang, En-Wei;Zhang, Bin-Bin
通讯作者:
Zhang, Bin-Bin