美宇航局观测到太阳爆发耀斑
文章来源:未知 文章作者:enread 发布时间:2011-06-08 02:59 字体: [ ]  进入论坛
(单词翻译:双击或拖选)

2 (medium-sized) solar flare1, an S1-class (minor) radiation storm and a spectacular coronal(冠状物) mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar surface. The Solar Dynamics2 Observatory3 (SDO) observed the flare's peak at 1:41a.m. ET (0641 UT). SDO recorded these images (above) in extreme ultraviolet light that show a very large eruption4 of cool gas. It is somewhat unique because at many places in the eruption there seems to be even cooler material -- at temperatures less than 80,000 K.

When viewed in Solar and Heliospheric Observatory's (SOHO) coronagraphs(日冕仪) (right), the event shows bright plasma5 and high-energy particles roaring from the Sun. This not-squarely Earth-directed CME is moving at 1400 km/s according to NASA models.

The CME should deliver a glancing blow to Earth's magnetic field during the late hours of June 8th or June 9th. High-latitude sky watchers should be alert for auroras(极光) when the CME arrives.

Check back shortly as more media is coming in as this is being published.



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1 flare LgQz9     
v.闪耀,闪烁;n.潮红;突发
参考例句:
  • The match gave a flare.火柴发出闪光。
  • You need not flare up merely because I mentioned your work.你大可不必因为我提到你的工作就动怒。
2 dynamics NuSzQq     
n.力学,动力学,动力,原动力;动态
参考例句:
  • In order to succeed,you must master complicated knowledge of dynamics.要取得胜利,你必须掌握很复杂的动力学知识。
  • Dynamics is a discipline that cannot be mastered without extensive practice.动力学是一门不做大量习题就不能掌握的学科。
3 observatory hRgzP     
n.天文台,气象台,瞭望台,观测台
参考例句:
  • Guy's house was close to the observatory.盖伊的房子离天文台很近。
  • Officials from Greenwich Observatory have the clock checked twice a day.格林威治天文台的职员们每天对大钟检查两次。
4 eruption UomxV     
n.火山爆发;(战争等)爆发;(疾病等)发作
参考例句:
  • The temple was destroyed in the violent eruption of 1470 BC.庙宇在公元前1470年猛烈的火山爆发中摧毁了。
  • The eruption of a volcano is spontaneous.火山的爆发是自发的。
5 plasma z2xzC     
n.血浆,细胞质,乳清
参考例句:
  • Keep some blood plasma back for the serious cases.留一些血浆给重病号。
  • The plasma is the liquid portion of blood that is free of cells .血浆是血液的液体部分,不包含各种细胞。
TAG标签: solar gas eruption
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