Solar extreme ultraviolet (EUV) flare observations and findings from the Solar Dynamics Observatory (SDO) EUV Variability Experiment (EVE)

New solar soft X-ray (SXR) and extreme ultraviolet (EUV) irradiance observations from NASA Solar Dynamics Observatory (SDO) EUV Variability Experiment (EVE) provide full coverage from 0.1 to 106 nm and continuously at a cadence of 10 seconds for spectra at 0.1 nm resolution. These observations durin...

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Bibliographic Details
Published in:Proceedings of the International Astronomical Union 2015-08, Vol.11 (S320), p.27-40
Main Authors: Woods, Thomas N., Eparvier, Francis G., Mason, James P.
Format: Article
Language:English
Subjects:
Analysis
Contributed Papers
Corona
Coronal mass ejection
Dimming
Estimates
Flares
Soft x-rays
Solar flares
Solar observatories
Solar physics
Spectra
Studies
Ultraviolet
Ultraviolet radiation
X-rays
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Summary:New solar soft X-ray (SXR) and extreme ultraviolet (EUV) irradiance observations from NASA Solar Dynamics Observatory (SDO) EUV Variability Experiment (EVE) provide full coverage from 0.1 to 106 nm and continuously at a cadence of 10 seconds for spectra at 0.1 nm resolution. These observations during flares can usually be decomposed into four distinct characteristics: impulsive phase, gradual phase, coronal dimming, and EUV late phase. Over 6000 flares have been observed during the SDO mission; some flares show all four phases, and some only show the gradual phase. The focus is on the newer results about the EUV late phase and coronal dimming and its relationship to coronal mass ejections (CMEs). These EVE flare measurements are based on observing the sun-as-a-star, so these results could exemplify stellar flares. Of particular interest is that new coronal dimming measurements of stars could be used to estimate mass and velocity of stellar CMEs.
ISSN:1743-9213
1743-9221
DOI:10.1017/S1743921316000466