美国国家航空航天局NASA每日一图-2017年7月20日

July 14 Solar Flare and a Coronal Mass Ejection

A medium-sized (M2) solar flare and a coronal mass ejection (CME) erupted from the same, large active region of the sun on July 14, 2017. The flare lasted almost two hours, quite a long duration. The coils arcing over this active region are particles spiraling along magnetic field lines, which were reorganizing themselves after the magnetic field was disrupted by the blast. Images were taken in a wavelength of extreme ultraviolet light.

Solar flares are giant explosions on the sun that send energy, light and high speed particles into space. These flares are often associated with solar magnetic storms known as coronal mass ejections (CMEs). While these are the most common solar events, the sun can also emit streams of very fast protons – known as solar energetic particle (SEP) events – and disturbances in the solar wind known as corotating interaction regions (CIRs).

The Solar Dynamics Observatory is managed by NASA's Goddard Space Flight Center, Greenbelt, Maryland, for NASA's Science Mission Directorate, Washington. Its Atmosphere Imaging Assembly was built by the Lockheed Martin Solar Astrophysics Laboratory (LMSAL), Palo Alto, California.

More: Animations of the solar flare

Image Credit: NASA/GSFC/Solar Dynamics Observatory

Last Updated: July 19, 2017
Editor: Sarah Loff

7月14日太阳耀斑和冠状质量射出

中型(M2)太阳耀斑和冠状质量弹射(CME)于2017年7月14日从太阳相同的大活跃区域喷发。火炬持续了近两个小时,时间相当长。在这个有源区域上产生的线圈是沿着磁场线旋转的粒子,它们在磁场被爆炸破坏之后重新组织起来。以极紫外光的波长拍摄图像。

太阳耀斑是太阳上的巨大爆炸,将能量,光和高速粒子发射到太空。这些耀斑通常与称为冠状质量喷射(CME)的太阳磁暴有关。虽然这些是最常见的太阳事件,但太阳也可以发出非常快的质子 - 称为太阳能能量粒子(SEP)事件的流 - 以及被称为同化相互作用区域(CIR)的太阳风中的干扰。

太阳能动力观测台由美国航空航天局戈达德太空飞行中心,美国马里兰州格林贝尔特管理,用于美国宇航局科学考察局华盛顿。其大气成像大会由洛克希德·马丁太阳能天体物理实验室(LMSAL),加利福尼亚州帕洛阿尔托建造。

更多:太阳耀斑的动画

图片来源:NASA / GSFC /太阳能动力观测站

最后更新:2017年7月19日
编辑:莎拉·洛夫

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