Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001acasn..42..382d&link_type=abstract
Acta Astronomica Sinica, vol.42, no.4, p. 382-389
Astronomy and Astrophysics
Astronomy
1
Sun, Microwave Type Bursts, Plasma Radiation, Sun, Microwave Type Bursts, Plasma Radiation
Scientific paper
A group of microwave type-III bursts observed by the 2.6-3.8 GHz spectrometer of Beijing Astronomical Observatory (BAO) on 1998 April 15 is introduced in detail in this paper. They have the characteristics of broad bandwidth (>100MHz), short durations (<100ms), very high polarization degrees (~100%), positive frequency drift rates (>1 GHz/s), and fast pulsations (with a period of about 100 ms). Their time profiles are also analyzed. According to these characteristics, we suggest that these microwave type III bursts are due to the plasma fundamental emission.
Duan Chun-Gui
Wang Min
Xie Rui Xiang
Yan Yi-Hua
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