Space Radiation Highlights: Wayward Field Lines Challenge Solar Radiation Models
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Source: images.nasa.gov
Video source record: https://images.nasa.gov/details-GSFC_20160928_Solar_m12379_Energetic
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Summary
| Description | In addition to the constant emission of warmth and light, our sun sends out occasional bursts of solar radiation that propel high-energy particles toward Earth. These solar energetic particles, or SEPs, can impact astronauts or satellites. To fully understand these particles, scientists must look to their source: the bursts of solar radiation. But scientists aren’t exactly sure which of the two main features of solar eruptions –narrow solar flares or wide coronal mass ejections – causes the SEPs during different bursts. Scientists try to distinguish between the two possibilities by using observations, and computer models based on those observations, to map out where the particles could be found as they spread out and traveled away from the sun. NASA missions STEREO and SOHO collect the data upon which these models are built. Sometimes, these solar observatories saw SEPs on the opposite side of the sun than where the eruption took place. What kind of explosion on the sun could send the |
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| Date | 2016-09-28 |
| Source | images.nasa.gov |