Type II radio emission predictions: Sources of coronal and interplanetary spectral structure

Details Type II radio emission predictions: Sources of coronal and interplanetary spectral structure Type II radio emission predictions: Sources of coronal and interplanetary spectral structure

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jgra..11001101k&link_type=abstract

Journal of Geophysical Research, Volume 110, Issue A1, CiteID A01101

Physics

Plasma Physics

11

Solar Physics, Astrophysics, And Astronomy: Radio Emissions, Space Plasma Physics: Shock Waves (4455), Solar Physics, Astrophysics, And Astronomy: Corona, Space Plasma Physics: Charged Particle Motion And Acceleration

Scientific paper

We extend a model for type II radio bursts to investigate emission from the quiet corona, as well as the emission relating to structures in the corona and interplanetary medium. The most notable effect for the quiet corona is the weakening or disappearance of emission near a peak in the heliocentric Alfvèn speed profile. By inserting various structures into the coronal and interplanetary plasma, most observed type II features are produced. Specifically, multiple-lane events, differing frequency drift rates, emission which turns on and off, and narrowband and broadband emission can be produced.

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