Radio Signatures of Solar Flare Reconnection

Details Radio Signatures of Solar Flare Reconnection Radio Signatures of Solar Flare Reconnection

Sep 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...631..612b&link_type=abstract

The Astrophysical Journal, Volume 631, Issue 1, pp. 612-617.

Astronomy and Astrophysics

Astronomy

7

Magnetohydrodynamics: Mhd, Sun: Activity, Sun: Flares, Sun: Radio Radiation, Turbulence

Scientific paper

The time evolution of plasma parameters (density, magnetic field, etc.) in a two-dimensional MHD model of solar flare reconnection is computed numerically. Then assuming plasma radio emission from locations where the ``double-resonance'' instability generates upper hybrid waves due to unstable distribution function of suprathermal electrons, the radio spectra and spatial source structures in the reconnection region are modeled. By comparison of the modeled and observed spectra, a remarkable similarity has been found between the computed narrowband emission and the observed lace bursts. Finally, a new radio diagnostic of the reconnection process based on the model is proposed.

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