Journal ArticleDOI
The third harmonic of type III solar radio bursts
Tatsuo Takakura,Shahinaz Yousef +1 more
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TLDR
In this article, two examples of pairs of J-shaped type III bursts with 2∶3 frequency ratio are given, and it is suggested that these could be the second and the third harmonics of undetected fundamental radiation.Abstract:
Two examples of pairs of ‘J-shaped’ type III bursts with 2∶3 frequency ratio are given. It is suggested that these could be the second and the third harmonics of undetected fundamental radiation. The 80 MHz heliograph source of the third harmonic showed an apparent brightness temperature of 109.6K, while the order of 1016K seems to be required theoretically. This may imply that the apparent radio source was composed of many unresolved small sources of much higher brightness temperature.read more
Citations
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Journal ArticleDOI
Solar Radio Astronomy
TL;DR: The Radio Emission of the Sun and Planets by V. V. Zheleznyakov and H. S. Massey as discussed by the authors was published by Pergamon Press, London and New York, February 1970.
Journal ArticleDOI
Coherent emission mechanisms in astrophysical plasmas
TL;DR: The early development and subsequent refinements of coherent emission theory, motivated by application to solar radio bursts, are reviewed in this article, and a possible direct measure of coherence is pointed out.
Journal ArticleDOI
Coherent Emission Mechanisms in Astrophysical Plasmas
TL;DR: Three known examples of coherent emission in radio astronomical sources are reviewed in this article : plasma emission, electron cyclotron maser emission (ECME) and pulsar radio emission.
Journal ArticleDOI
Dynamics of a cloud of fast electrons travelling through the plasma
TL;DR: In this paper, a numerical analysis of quasi-linear relaxation has been made for four models of electron beam with a finite length travelling through the plasma, and a model atmosphere of the corona is adopted and also an increase in the cross-section of the electron beam is taken into account.
Journal ArticleDOI
New waves at multiples of the plasma frequency upstream of the Earth's bow shock
TL;DR: The first observations of waves at harmonics higher than the second of the electron plasma frequency were reported by the ISEE 1 spacecraft upstream of the earth's bow shock as discussed by the authors, with effective temperatures decreasing from 5 x 10 to 17th K to 10 billion K over this range.
References
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Journal ArticleDOI
Solar Radio Astronomy
TL;DR: The Radio Emission of the Sun and Planets by V. V. Zheleznyakov and H. S. Massey as discussed by the authors was published by Pergamon Press, London and New York, February 1970.