Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons

Details Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons

Sep 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981soph...73..145s&link_type=abstract

Solar Physics, vol. 73, Sept. 1981, p. 145-155.

Physics

66

Chromosphere, Electron Acceleration, Magnetoplasmadynamics, Plasma Heating, Solar Flares, Bursts, Cold Plasmas, Flow Velocity, High Energy Electrons, Ion Temperature, Magnetohydrodynamic Flow, Plasma Density, Plasma-Particle Interactions, Solar Atmosphere, Solar Magnetic Field, Solar X-Rays

Scientific paper

The problem of hydrodynamic response of the solar chromosphere on impulsive heating by energetic electrons is discussed. All basic physical processes are considered in a one-dimensional approximation, due to presence of a strong magnetic field. The calculations are performed for the heating of the chromosphere by electrons having a power-law energetic spectrum. In the upper chromosphere the electron temperature rises rapidly to values of order 107 K. The ion temperature is more than the order of magnitude less than the temperature of electrons. The heated high-temperature chromospheric plasma expands into corona with a velocity up to 1500 km s-1. In more dense layers, the fast re-emission of supplied energy takes place. This process gives rise to short-lived EUV flash. Just below the flare transition layer the thermal instability produces cold plasma condensation which moves downward at a velocity exceeding the sonic one in the quiet chromosphere.

Affiliated with

Also associated with

No associations

Rating

Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons 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 Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrodynamic response of the solar chromosphere to an elementary flare burst. I - Heating by accelerated electrons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1516776