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arXiv 0810.2237astro-ph
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高频波在宁静太阳大气中的传播

Propagation of High Frequency Waves in the Quiet Solar Atmosphere

Aleksandra Andić

摘要:

高频波(5 mHz至20 mHz)以前曾被认为是一种能量来源,可以部分加热安静的太阳大气。这里分析了以前检测到的高频波的动力学。图像序列是使用德国真空塔望远镜(VTT),天文台德尔泰德,伊扎纳,特内里费岛,与法布里-珀罗光谱仪。对采集的数据进行了散斑抑制和小波分析。小波相位差分析进行,以确定是否波传播。我们观察波的传播频率范围为10 mHz至13 mHz。我们还观察到传播的低频波的范围内,他们被认为是在磁性结构存在的区域倏逝。

英文摘要:

High-frequency waves (5 mHz to 20mHz) have previously been suggested as a source of energy accounting partial heating of the quiet solar atmosphere. The dynamics of previously detected high-frequency waves is analysed here. Image sequences are taken using the German Vacuum Tower Telescope (VTT), Observatorio del Teide, Izana, Tenerife, with a Fabry-Perot spectrometer. The data were speckle reduced and analyzed with wavelets. Wavelet phase-difference analysis is performed to determine whether the waves propagate. We observe the propagation of waves in the frequency range 10mHz to 13mHz. We also observe propagation of low-frequency waves in the ranges where they are thought to be evanescent in regions where magnetic structures are present.

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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