Positional Properties of Solar Decimetric Fiber Bursts

Details Positional Properties of Solar Decimetric Fiber Bursts Positional Properties of Solar Decimetric Fiber Bursts

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.9328l&link_type=abstract

American Astronomical Society Meeting 210, #93.28; Bulletin of the American Astronomical Society, Vol. 39, p.215

Astronomy and Astrophysics

Astronomy

Scientific paper

The large solar flare of 2006 December 6 was detected by the newly constructed FASR Subsystem Testbed (FST; Liu et al. 2007, PASP, 119), which is operating on three antennas of Owens Valley Solar Array. This record-setting burst produced an especially fine set of fibers bursts--so-called intermediate-drift bursts that drift from high to low frequencies over 6-10s. According to a leading theory, the fibers are generated by packets of whistler waves propagating along a magnetic loop, which coalesce with Langmuir waves to produce escaping electromagnetic radiation in the decimeter band. With this three element interferometer, for the first time fiber burst source locations can be determined. We use the radio information over a 500 MHz band (1.0-1.5 GHz) to determine the trajectories of the bursts. We attempt to define three-dimensional trajectories by combining the two-dimensional radio positions with height of the fiber source determined from a coronal density model.

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