Experimental detection of an ELF radio pulse associated with the gamma-ray burst of December 27, 2004
Experimental detection of an ELF radio pulse associated with the gamma-ray burst of December 27, 2004
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对与 2004 年 12 月 27 日伽马射线暴相关的 ELF 无线电脉冲的实验探测
DOI：
10.1007/s11141-011-9268-6
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发表时间：
2011
影响因子：
0.8
通讯作者：
A. Schekotov
中科院分区：
文献类型：
--
作者：
A. Nickolaenko;A. Schekotov
我们比较了与地球电离层空腔高度突变相关的电磁脉冲的实验观测波形和模型波形，这是由2004年12月27日来自宇宙源的强烈伽马射线爆发引起的。研究了该暴的偏振特性和光谱特性。实验结果表明，实验观测到的极低频（ELF）射电脉冲比普通的舒曼共振背景信号高几倍，其波形与计算结果接近。波到达角接近电离层扰动的震中方向。脉冲到达Karymshino天文台（52.83°N, 158.13°E）的时间比爆发记录时间提前了约0.16 s。
We compare the experimentally observed and model waveforms of the electromagnetic pulse associated with an abrupt change in the height of the Earth–ionosphere cavity, which was caused by an intense gamma-ray burst that arrived from the cosmic source in December 27, 2004. Polarization and spectral properties of the burst are examined. It is shown that the experimentally observed extremely low frequency (ELF) radio pulse exceeds the level of a regular Schumann-resonance background signal severalfold, and its waveform is close to the calculated one. The wave arrival angle is close to the direction towards the epicenter of the ionospheric disturbance. The time of pulse arrival at the Karymshino observatory (52.83°N, 158.13°E) is about 0.16 s ahead of the burst recording time.