Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares

Details Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsp21a..02h&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SP21A-02

Other

7519 Flares, 7549 Ultraviolet Emissions, 7554 X Rays, Gamma Rays, And Neutrinos

Scientific paper

Understanding the energetics of solar flares depends on obtaining reliable determinations of the energy input to flare plasma. X-ray observations of the thermal bremsstrahlung from hot flare plasma provide temperatures and emission measures which, along with estimates of the plasma volume, allow the energy content of this hot plasma to be computed. However, if thermal energy losses are significant or if significant energy goes directly into cooler plasma, this is only a lower limit on the total energy injected into thermal plasma during the flare. We use SOHO UVCS observations of O VI flare emission scattered by coronal O VI ions to deduce the flare emission at transition region temperatures between 100,000 K and 1 MK for the 2002 July 23 and other flares. We find that the radiated energy at these temperatures significantly increases the deduced energy input to the thermal plasma, but by an amount that is less than the uncertainty in the computed energies. Comparisons of computed thermal and nonthermal electron energies deduced from RHESSI, GOES, and UVCS are shown.

Affiliated with

Also associated with

No associations

Rating

Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares 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 Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transition Region Emission and the Energy Input to Thermal Plasma in Solar Flares will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1697473