Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA

Details Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh44a..04g&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH44A-04

Astronomy and Astrophysics

Astrophysics

[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7514] Solar Physics, Astrophysics, And Astronomy / Energetic Particles, [7519] Solar Physics, Astrophysics, And Astronomy / Flares, [7554] Solar Physics, Astrophysics, And Astronomy / X-Rays, Gamma Rays, And Neutrinos

Scientific paper

For the past nine years, hard X-ray observations by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) have provided remarkable insight into the locations and spectra of energetic flare particles. With the advent of high-cadence, multiwavelength observations by the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory, it is now more possible to study the dynamic structures among which these energetic particles move. On November 3, 2010, a C4.9 solar flare occurred just behind the eastern limb of the Sun, accompanied by a coronal mass ejection. Because the bright flare footpoints were occulted by the solar disk (by about 6 degrees), faint coronal X-ray sources can be studied in detail. Extreme ultraviolet (EUV) images from AIA show a mass of plasma ejected from the solar surface. Isothermal analysis using multiple EUV filters shows that this erupting plasma reaches a high temperature of ~11 MK. Meanwhile, RHESSI X-ray images reveal a large, diffuse hard X-ray source matching the location, shape, and evolution of the ejecting plasma, suggesting the presence of nonthermal electrons that may be magnetically trapped in the region. Here, RHESSI spectroscopy and AIA temperature analysis are combined in order to examine the relationship between the populations of thermal and nonthermal electrons in the ejected plasma. Electron spectra, locations, and temporal evolution are examined in order to test the hypothesis that nonthermal electrons collisionally heat the erupting plasma to this high temperature.

Affiliated with

Also associated with

No associations

Rating

Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA 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 Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energetics And Heating In A Solar Plasma Ejection Observed By RHESSI And AIA will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-880517