ISSN:
1573-093X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The paper deals with the stria-burst observations by the UTR-2 radio telescope (IRE AN UkSSR, Kharkov) at the frequencies of 12.5–25 MHz. Two varieties of these bursts are pointed out: ordinary stria-bursts and diffusive stria-bursts. The ordinary stria-bursts may occur isolated, as split-pairs and splitted triple bursts (triplets). At the frequency 25 MHz, the ordinary stria-bursts are characterized by the average duration about 1 s, the band width 0.07 MHz and the frequency drift 0.07 MHz s−1. A scale of the frequency splitting in pairs and triplets is 0.1 MHz. The diffusive stria-bursts have essentially larger duration (of the order of 10 s) and no visible frequency drift. Like the ordinary stria-bursts, the diffusive ones may appear isolated and in the form of split-pairs and triplets. The occurrence of echoes is typical of both types of stria-bursts which are a succession of two or several (multiple echoes) similar bursts separated by the time interval 1.5–2.5 s for the ordinary and by 3–10 s for the diffusive stria-bursts. Sometimes the bursts with two scales of the frequency splitting are observed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00154982
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