NATS 1870 Lecture Notes - Lecture 18: Stellar Atmosphere, Coronal Mass Ejection, Solar Flare
25 Mar 2017
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Question 1: how will aurora form, compared to the formation of rainbow: very similar to rainbow formation, very different than rainbow formation, due to dispersion of light, a and c. It is the absorption and emission of light. Question 2: how long will it take for charged particles to reach to earth: same time as light, faster than light, less than 8 min, more than 8 min, b and c. In general, these charged particles ejected from the sun are called solar wind. Solar prominence: one of the sources of solar wind is the solar prominence, also known as filament. Solar flare: this is another source of the charged particle or solar wind. Difference between solar prominence and solar flares: prominence is going up and coming back down, like an arc, solar flares are like blasts, an explosion, and some material eject/release to the space from the sun. Corona: this is the su(cid:374)(cid:859)s outer at(cid:373)osphere regio(cid:374) (see figure d)
