Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000

Details Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000 Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001soph..204..153w&link_type=abstract

Solar Physics, v. 204, Issue 1/2, p. 153-164 (2001).

Physics

10

Scientific paper

25 MHz 7.6 GHz global and detailed (fine structure FS) radio spectra are presented, which were observed in the NOAA 9077 active region for the Bastille Day (14 July 2000) flare at 10:10 11:00 UT. Besides broadband radio bursts, high-resolution dynamic spectra reveal metric type II burst, decimetric type IV burst and various decimetric and microwave FSs, such as type III bursts, type U bursts, reverse-slope (RS)-drifting burst, fiber bursts, patch and drifting pulsation structure (DPS). The peak-flux-density spectrum of the radio bursts over the range 1.0 7.6 GHz globally appears as a U-shaped signature. Analyzing the features of backbone and herringbones of the type II burst, the speeds of shock and relevant energetic electron beams were estimated to be 1100 km s-1 and 58 500 km s-1, respectively. Also the time sequence of the radio emission is analyzed by comparing with the hard X-rays (HXRs) and the soft X-rays (SXRs) in this flare. After the maxima of the X-rays, the radio emission in the range 1.0 7.6 GHz reached maxima first at the higher frequency, then drifted to the lower frequency. This comparison suggested that the flare included three successive processes: firstly the X-rays rose and reached maxima at 10:10 10:23 UT, accompanied by fine structures only in the range 2.6 7.6 GHz; secondly the microwave radio emission reached maxima accompanied by many fine structures over the range 1.0 7.6 GHz at 10:23 10:34 UT; then a decimetric type IV burst and its associated FSs (fibers) in the range 1.0 2.0 GHz appeared after 10:40 UT.

Affiliated with

Also associated with

No associations

Rating

Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broadband Radio Bursts and Fine Structures during the Great Solar Event on 14 July 2000 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1375059