耀斑驱动的全球波
On Flare Driven Global Waves
摘要：
我们最近提出的证据表明，太阳声波频谱高频部分的能量与太阳X射线通量之间存在很强的相关性Karoff & Kjeldsen（2008）。这一发现表明，耀斑驱动太阳的全球振荡，就像2004年12月苏门答腊-安达曼大地震后，整个地球会响几个星期一样。如果这一指示被证明是真的，我们也许能够利用耀斑和声谱高频部分能量之间的关系来探测太阳远端的耀斑和其他类太阳恒星上的耀斑。但是，这一发现也开启了许多新的问题，例如为什么只有声波频谱的高频部分与X射线通量相关？而且，太阳耀斑中是否有足够的能量驱动全球振荡？
英文摘要：
We recently presented evidence of a strong correlation between the energy in the high-frequency part of the acoustic spectrum of the Sun and the solar X-ray flux Karoff & Kjeldsen (2008). The discovery indicates that flares drive global oscillations in the Sun in the same way that the entire Earth is set ringing for several weeks after a major earthquake, such as the 2004 December Sumatra-Andaman one. If this indication turns out to be true we might be able to use the relation between flares and the energy in the high-frequency part of the acoustic spectrum to detect e.g. flares on the far side of the Sun and flares on other solar-like stars. But, the discovery also opens many new questions such as why is it only the high-frequency part of the acoustic spectrum that is correlated with the X-ray flux? And, are there energy enough in solar flares do drive global oscillations?
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