Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cha%26a..30..303m&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 30, Issue 3, p. 303-310.
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
The 266 type III bursts, observed with the 2.6 3.8 GHz high temporal resolution dynamic spectrometer of NAO during the 23rd solar cycle (from April 1998 to January 2003), are statistically analyzed. The parameters of these events, including the frequency drift, duration, polarization, bandwidth, starting and ending frequencies, are analyzed in details. The statistics on the starting and ending frequencies indicate that the starting frequency varies in a very large range from less than 2.6 GHz to greater than 3.8 GHz, while the ending frequency varies in a relatively narrow range from 2.82 GHz to 3.76 GHz. These phenomena imply that the heights where the electrons are accelerated are quite scattered, while the cutoff regions of the type III bursts are relatively restricted. The numbers of the bursts with the positive and negative drift rates are nearly equal, this may suggest that the accelerated electrons propagating upward and those propagating downward are equally proportioned in the observing frequency range. And the statistical results demonstrate that the microwave type III bursts are mainly caused by the plasma radiation and electron gyro-maser radiation.
Ma Yuan
Meng Xiang-Mang
Xie Rui-Xiang
Yan Yi-Hua
No associations
LandOfFree
Observational characteristics of microwave type III bursts 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 Observational characteristics of microwave type III bursts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observational characteristics of microwave type III bursts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1140220