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Updated: Jul 17, 2026
13:31
High Speed Sub-GHz Spectrometer for Brillouin Scattering Analysis
Published on: December 22, 2015
对GRB 990123的光学后照辐射的极度限制
1Astronomical Observatory, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen O, Denmark. Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland. Nordic Optical Telescope, Ap. 474 St. Cruz de La Palma, E-387.
Science (New York, N.Y.)
|March 26, 1999
概括
从玛射线爆发 (GRB) 990123的光学辐射的测量没有发现显著的线性极化. 这表明GRB是GRB.
科学领域:
- 天体物理学 天体物理学
- 高能天文学 高能天文学
背景情况:
- 马射线爆发 (GRBs) 是宇宙射线的强烈闪光.
- 为了了解GRB发射机制,需要研究爆炸波的特性.
研究的目的:
- 为了研究GRB 990123.3的光学后照辐射的极化.
- 为了限制GRB外流的几何和磁场结构.
主要方法:
- 使用北欧光学望远镜进行光学观测.
- 测量GRB 990123的线性偏振,在发光后.
主要成果:
- 在线极化上,GRB 990123.3的上限为2.3%.
- 在光学后照中没有检测到显著的极化.
结论:
- 两极分化的缺乏表明一个微不足道的连贯磁场或在一个小角度观看的高度合并的喷射.
- 这些发现可能有助于解释发光宇宙爆发中的能量释放.
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