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  • Presentation | SH31F: Solar Flares in the High-Resolution, High-Cadence Era: Observations, Modeling, and Future Prospects I Poster
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  • SH31F-2503: A New Method to Measure Doppler Velocities During a Flare Using SDO/EVE MEGS-A
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Author(s):
Gabriela Gonzalez, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics (First Author, Presenting Author)
Phillip Chamberlin, University of Colorado


Studying solar flares can help us work towards predicting space weather which affects our technology here on Earth such as our radios, satellites, and GPS systems. Solar flares are eruptions of plasma that occur when there is a large amount of energy deposited onto the surface of the Sun. We are trying to measure the height at which this energy deposition occurs. We are doing by analyzing unprocessed images from the Extreme ultraviolet Variability Experiment (EVE) which is one of three instruments onboard the Solar Dynamics Observatory (SDO). Many corrections had to be made to the unprocessed images to get the resolution and accuracy needed. These images from the Multiple EUV Grating Spectrographs (MEGS) A channel of EVE, which measures extreme ultraviolet wavelengths between 5–37 nm, show us hundreds of emissions lines from the Sun’s atmosphere. We have measured the displacement of these ions during a solar flare because they correlate to the motion of plasma. By studying this motion, we can find at what altitude the energy deposition of flares occurs.



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