High energy polarimetry of prompt GRB emission

被引：49

作者：

McConnell, Mark L. ^{[1
,2
]}

机构：

[1] Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA

[2] Southwest Res Inst, Dept Earth Oceans & Space, Durham, NH 03824 USA

来源：

NEW ASTRONOMY REVIEWS | 2017年 / 76卷

关键词：

Gamma-rays; Instrumentation; Polarimetry; Polarization; Gamma-ray bursts; GAMMA-RAY BURST; BATSE OBSERVATIONS; ASTROSAT-CZTI; POLARIZATION; ABOARD; SPECTROMETER; 041219A; RHESSI; SPI; DETECTOR;

D O I：

10.1016/j.newar.2016.11.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

[Evidence] of polarized gamma-ray emission (> 50 keV) from Gamma-Ray Bursts (GRBs) has been accumulated in recent years. Measurements have been reported with levels in the range of 30-80%, typically with limited statistical significance. No clear picture has yet emerged with regards to the polarization properties of GRBs. Taken at face value, the data suggest that most GRBs have a relatively large level of polarization (typically, > 50%), which may suggest synchrotron emission associated with an ordered magnetic field structure within the GRB jet. But these results are far from conclusive. Here, we review the observations that have been made, concentrating especially on the instrumental issues and the lessons that might be learned from these data. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1 / 21

页数：21

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