Journal ArticleDOI
Plasma radiation from collisionless MHD shock waves. I. Shock region analysis
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This article is published in The Astrophysical Journal.The article was published on 1971-01-01. It has received 27 citations till now. The article focuses on the topics: Shock waves in astrophysics & Shock wave.read more
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Journal ArticleDOI
Kinetic cyclotron and synchrotron maser instabilities - Radio emission processes by direct amplification of radiation
TL;DR: The theory of the kinetic (cyclotron an synchroton) maser instabilities has been extensively developed in recent years by many authors, who have been incited by the research of the auroral kilometric radiation and other applications as mentioned in this paper.
Journal ArticleDOI
Behavior of the flare-produced coronal MHD wavefront and the occurrence of type II radio bursts
Yutaka Uchida,Yutaka Uchida +1 more
TL;DR: In this paper, the propagation of the weak MHD fast-mode shock emitted into the corona by flares at their explosive phase is computer-simulated, and it is shown as the result that the shock wave is refracted towards the low Alfven velocity regions pre-existing in the solar corona, and the strength of the shock, which is otherwise weak, is drastically enhanced on encountering low-VA regions due to the focussing effect by refraction and also due to a lowered propagation velocity of the shell.
Journal ArticleDOI
Magnetic field strength in the solar corona from type II band splitting
TL;DR: In this paper, the authors measured the width of the band splitting on a dynamic spectrum of the bursts observed with the Green Bank Solar Radio Burst Spectrometer (GBSRBS), and converted it to the Alfven Mach number under the Rankine-Hugoniot relation.
Journal ArticleDOI
The electron distribution function upstream from the Earth's bow shock
TL;DR: In this paper, a general analytic theory for the distribution function of particles backstreaming from an arbitrary shock in a magnetized plasma is presented, and an analytic approximation of the cutoff velocity at points in the upstream region is derived.
Book ChapterDOI
On Split-Band Structure in Type II Radio Bursts from the Sun
TL;DR: In this article, the measured amount of band-splitting in the spectra of nine harmonic type II bursts is illustrated in Figure 1 and Δ f is found to increase with frequency, f.