NDLI: Type III burst pair

Content Provider	Springer Nature Link
Author	Ning, Zongjun Fu, Qijun Lu, Quankang
Copyright Year	2000
Abstract	We present a special solar radio burst detected on 5 January 1994 using the multi-channel (50) spectrometer (1.0–2.0 GHz) of the Beijing Astronomical Observatory (BAO). Sadly, the whole event could not be recorded since it had a broader bandwidth than the limit range of the instrument. The important part was obtained, however. The event is composed of a normal drift type III burst on the lower frequency side and a reverse drift type III burst appearing almost simultaneously on the high side. We call the burst type III a burst pair. It is a typical characteristic of two type III bursts that they are morphologically symmetric about some frequency from 1.64 GHz to 1.78 GHz on the dynamic spectra records, which indicates that there are two different electron beams from the same acceleration region travelling simultaneously in opposite directions (upward and downward). A magnetic reconnection mode is a nice interpretation of type III burst pair since the plasma beta β≃0.01 is much less than 1 and the beams have velocity of about 1.07×10$^{8}$ cm s$^{−1}$ after leaving the reconnection region if we assume that the ambient magnetic field strength is about 100 G.
Starting Page	137
Ending Page	145
Page Count	9
File Format	PDF
ISSN	00380938
Journal	Solar Physics
Volume Number	194
Issue Number	1
e-ISSN	1573093X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2000-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Astrophysics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

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