Transcripts of 2014-066 EUNIS Sees Evidence for Nanoflare Coronal HeatingV4

tone music As you get farther away from the sun, the temperature goes up. Now, this is counterintuitive. It's like if you are trying to heat a marshmallow on a fire, you put the marshmallow closer to the fire to heat it up not pull it farther away. This been a mystery for quite a while. According to the nanoflare heating theory of the solar corona, there are very many low energy nanoflare heating events. Energy is released in a nanoflare, it heats the local plasma to a very high temperature, around 10 million degrees and there's such a small amount of this very hot plasma, that we can't see the individual nanoflares, but as you cool down through the 2 million degree range, which happens fairly quickly, and as many of these events occur, we end up seeing the 2 million degree solar corona. that we're used to. One of the objectives of the EUNIS flight was to address this. EUNIS is an acronym for the Extreme Ultraviolet Normal Incident Spectragraph It's an instrument that we fly on a sounding rocket out of White Sands Missile Range, New Mexico. It reaches an altitude of about 320 kilometers which is about 200 miles. We record about 6 minutes of observations of the sun, and then the instrument parachutes back down into the desert where we can retrieve it. Basically, it's 2 separate instruments, 2 spectrameters, pointed in the same area of the sun, so we can be observing a very wide wavelength range. Each of these channels is very rich in emission lines. There are lines from many different ionization stages of lots of different elements. For the purposes of this work, we are interested in the Fe XIX and the Fe XII emission. We can see faint emission at those temperatures that provide the further smoking gun evidence for the nanoflare heating theory. So, this is very exciting for astronomers and people who are trying to diagnose what is going on in the sun's atmosphere beeping