亚太赫兹太阳爆发中的快速脉动
Rapid pulsations in sub-THz solar bursts
摘要：
一个新的太阳爆发发射光谱分量已被发现，显示亚太赫兹通量随频率增加，从众所周知的微波分量光谱分离。在太阳亚毫米波望远镜（SST）的两个频率（212和405千兆赫）下观察到的所有事件中都发现了快速脉动。他们进行了更详细的研究，三个太阳爆发表现出新的太赫兹光谱分量。脉冲幅度约为整个爆发持续时间的平均通量的5-8%，对于两个频率是相当的。脉动的范围从每几秒一个脉冲到每秒8-10个脉冲。脉冲重复率（R）与平均爆发通量（S）成线性比例，遵循简单的关系S = k R，表明脉动可能是对能量量化的离散耀斑粒子加速器注入的响应。虽然这一结果与先前在GHz范围内发现的定性趋势一致，但相对于亚太赫兹频率处的平均通量的脉冲幅度似乎比从GHz范围内发现的趋势外推所预期的小近十倍。然而，有困难来调和几乎同时GHz和太赫兹突发发射光谱分离的组件，表现出快速脉动相当大的相对强度在GHz范围内。
英文摘要：
A new solar burst emission spectral component has been found showing sub-THz fluxes increasing with frequency, spectrally separated from the well known microwave component. Rapid pulsations are found present in all events observed at the two frequencies of the solar submillimeter-wave telescope (SST): 212 and 405 GHz. They were studied in greater detail for three solar bursts exhibiting the new THz spectral component. The pulse amplitudes are of about 5-8% of the mean flux throughout the bursts durations, being comparable for both frequencies. Pulsations range from one pulse every few seconds to 8-10 per second. The pulse repetition rates (R) are linearly proportional to the mean burst fluxes (S), following the simple relationship S = k R, suggesting that the pulsations might be the response to discrete flare particle accelerator injections quantized in energy. Although this result is consistent with qualitative trends previously found in the GHz range, the pulse amplitude relative to the mean fluxes at the sub-THz frequencies appear to be nearly ten times smaller than expected from the extrapolation of the trends found in the GHz range. However there are difficulties to reconcile the nearly simultaneous GHz and THz burst emission spectrally separated components, exhibiting rapid pulsations with considerably larger relative intensities in the GHz range.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
