2018年05月27日:太阳的日冕雨-(Coronal Rain on the Sun)

2018年05月27日:太阳的日冕雨-(Coronal Rain on the Sun)

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2018-05-27 / 0 评论 / 0 阅读 / 正在检测是否收录...

2018年05月27日:太阳的日冕雨-(Coronal Rain on the Sun)--原图下载

2018 May 27


Video Credit: Solar Dynamics Observatory,SVS,GSFC,NASA; Music: Thunderbolt by Lars Leonhard
说明: 太阳会下雨吗?会的,只不过降下的不是雨水,而是极端炽热的电浆例证之一出现在2012年中,当时太阳爆发了日冕物质抛射与中等规模的太阳闪燄,然后接续发生的现象,就非常不寻常。影像记录到邻近的日冕 在降温后回落,形成了日冕雨的景观。不过因为日冕雨物质是带电的电子质子离子,所以它们是沿太阳表面的磁圈流动,因此看起来像是超现实的无源头三维瀑布。这部看来意外宁静的精彩影片,摄于紫外光 波段,以突显温度大约50,000的物质发出之辉光。这部主题缩时影片里的每一秒,真实的拍摄时间约略是6分钟,所以整个日冕雨持续了大约10小时。最近的观测证实,日冕雨可发生在较小的迴圈里,持续的时间则可长至30小时。

原文:

Video Credit: Solar Dynamics Observatory,SVS,GSFC,NASA; Music: Thunderbolt by Lars Leonhard
Explanation: Does it rain on the Sun?Yes, although what falls is not water but extremely hot plasma.An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare. What was more unusual, however, was what happened next.Plasma in the nearby solar corona was imaged cooling and falling back, a phenomenon known as coronal rain.Because they are electrically charged, electrons, protons, and ions in the rain were gracefully channeled along existing magnetic loops near the Sun's surface, making the scene appear as a surreal three-dimensional sourceless waterfall.The resulting surprisingly-serene spectacle is shown in ultraviolet light and highlights matter glowing at a temperature of about 50,000 Kelvin.Each second in the featured time lapse video takes about 6 minutes in real time, so that the entire coronal rain sequence lasted about 10 hours.Recent observations have confirmed that that coronal rain can also occur in smaller loops for as long as 30 hours.

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