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Siberian Radioheliograph: first results

机译:西伯利亚放射线描记器:第一个结果

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Regular observations of active processes in the solar atmosphere have been started using the first stage of the multiwave Siberian Radioheliograph (SRH), a T-shaped 48-antenna array with a 4–8 GHz operating frequency range and a 10 MHz instantaneous receiving band. Antennas are mounted on the central antenna posts of the Siberian Solar Radio Telescope. The maximum baseline is 107.4 m, and the angular resolution is up to 70". We present examples of observations of the solar disk at different frequencies, “negative” bursts, and solar flares. The sensitivity to compact sources reaches 0.01 solar flux units (≈10^{-4} of the total solar flux) with an accumulation time of about 0.3 s. The high sensitivity of SRH enables monitoring of solar activity and allows studying active processes from characteristics of their microwave emission, including faint events, which could not be detected previously.
机译:已经开始使用多波西伯利亚放射Heliograph(SRH)的第一阶段开始对太阳大气中的活跃过程进行常规观察,这是一个T形48天线阵列,工作频率范围为4-8 GHz,瞬时接收频带为10 MHz。天线安装在西伯利亚太阳射电望远镜的中央天线柱上。最大基线为107.4 m,角分辨率最大为70“。我们提供了在不同频率,“负”爆发和太阳耀斑下观测太阳盘的示例。对紧凑型光源的灵敏度达到0.01太阳通量单位( ≈10 ^ {-4}(总太阳通量),累积时间约为0.3 s。SRH的高灵敏度可以监控太阳活动,并可以根据其微波发射特征(包括微弱事件)研究活跃过程,这可能之前未检测到。

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