Fiber bursts concurrent with a weak noise storm

Details Fiber bursts concurrent with a weak noise storm Fiber bursts concurrent with a weak noise storm

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976soph...46..247k&link_type=abstract

Solar Physics, vol. 46, Jan. 1976, p. 247-252.

Physics

5

Fine Structure, Magnetic Field Configurations, Plasma Dynamics, Solar Radio Bursts, Bandwidth, Field Strength, Solar Magnetic Field, Time Response, Wave Packets, Whistlers

Scientific paper

A peculiar fine structure was detected on the solar radio spectrograph that resembles a fiber burst in some respects (bandwidth, frequency drift rate), but is distinct from a fiber burst in others (lack of absorption ridge, lack of polarization, no radioflare association). Two varieties are distinguished. The continuous variety has a typical instantaneous bandwidth of 1 or 2 MHz and duration of 0.2 sec. The broken variety consists of a series of short-lived elements with typical bandwidth of 5 MHz and duration of 0.2 sec. Their maximum flux density amounts to 3-5 s.u. The fine structures were observed in a quiet period after a weak noise storm had almost died out. Source magnetic field strengths are estimated on the basis of Kuijper's whistler model.

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