Saturday, 10 March 2012

Solar Burst on Skypipe

Solar Bursts can always be detected at the frequency about 20 MHz. The common characteristic is turn on rapidly and decay slowly.



Here is the examples received by from NASA’s Radio JOVE Project.


But, actually, the solar burst can be classified into 5 kinds.

Type I  Short, narrow band events that usually occur in great numbers
together with a broader band continuum. May last for hours or days.


Type II  Slow drift from high to low frequencies. Often show fundamental
and second harmonic frequency structure.


Type III  Rapidly drift from high to low frequencies. May exhibit harmonics.
Often accompany the flash phase of large flares.


Type IV  Flare-related broad-band continua.


Type V  Broad-band continua which may appear with III bursts. Last 1 to 2
minutes, with duration increasing as frequency decreases.

No comments:

Post a Comment