Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...514..472m&link_type=abstract
The Astrophysical Journal, Volume 514, Issue 1, pp. 472-483.
Astronomy and Astrophysics
Astronomy
37
Sun: Flares, Sun: X-Rays, Gamma Rays
Scientific paper
Data from the Yohkoh Soft X-ray Telescope (SXT) and Bragg Crystal Spectrometer (BCS) are used to obtain the differential emission measure (DEM) of solar flare soft X-ray plasma. The maximum entropy method is used to obtain the DEM for 80 flares observed by SXT and BCS from 1991 October to 1992 November. We find that it is often difficult to describe the DEM using a monotonically decreasing function; functions with a hump at high temperature are occasionally more useful. From the time history of the DEM, we show that higher temperature plasma peaks earlier and cools faster. We also show that high-temperature plasma (>16.5 MK) is more likely than low-temperature plasma to exhibit the so-called Neupert effect, in which the time derivative of the soft X-ray emission measure is similar to the light curve of the impulsive hard X-ray emission for the flare.
Fisher George H.
Li Peng
McTiernan James M.
No associations
LandOfFree
The Solar Flare Soft X-Ray Differential Emission Measure and the Neupert Effect at Different Temperatures does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Solar Flare Soft X-Ray Differential Emission Measure and the Neupert Effect at Different Temperatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Solar Flare Soft X-Ray Differential Emission Measure and the Neupert Effect at Different Temperatures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1444979