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arXiv 1111.3226astro-ph.IMastro-ph.SR
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十月太阳射电观测的天线性能分析

Antenna Performance Analysis for Decameter Solar Radio Observations

Aleksander Stanislavsky, Aleksander Konovalenko, Eduard Abranin, Vladimir Dorovskyy, Valentin Mel'nik, Michael Kaiser, Alain Lecacheux, Helmut Rucker

摘要:

在太阳爆发中,十亿分之一波长的无线电辐射是精细结构的。对于他们的研究,使用足够灵敏度的天线系统是非常重要的。本文研究射电望远镜天线有效面积对太阳射电十月观测结果的影响。为此,我们比较了720个地面偶极子阵列和射电望远镜UTR-2的单偶极子接收到的太阳爆发。结果表明,较大的地面天线有效面积可以使我们测量较弱的太阳辐射,并区分强太阳事件的精细结构。在重叠频率范围内同时进行的地面和空间观测也证实了这一特点。

英文摘要:

Decameter wavelength radio emission is finely structured in solar bursts. For their research it is very important to use a sufficient sensitivity of antenna systems. In this paper we study an influence of the radiotelescope-antenna effective area on the results of decameter solar radio observations. For this purpose we compared the solar bursts received by the array of 720 ground-based dipoles and the single dipole of the radiotelescope UTR-2. It's shown that a larger effective area of the ground-based antenna allows us to measure a weaker solar emission and to distinguish a fine structure of strong solar events. This feature has been also verified by simultaneous ground- and space-based observations in the overlapping frequency 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。

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