Natural spectral bandwidth of electron cyclotron maser emission

Gregory Fleishman

doi:10.1134/1.1795949

Natural spectral bandwidth of electron cyclotron maser emission

Gregory Fleishman

Center For Solar Terrestrial Research - Big Bear Solar Observatory

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

We studied the spectral properties of the electron cyclotron maser emission generated by anisotropic distributions of fast electrons with power-law magnitude distributions in solar flares. The natural bandwidth of the generated spectral line depends significantly on the angle between the direction of the wave emission and the direction of the magnetic field in the source. In addition, the line bandwidth depends on the parameters of the momentum and pitch-angle distribution functions for fast electrons. The typical spectral bandwidths are shown to lie within the range 0.1-0.4%, in agreement with the minimum observable bandwidths of millisecond solar radio spikes.

Original language	English (US)
Pages (from-to)	603-614
Number of pages	12
Journal	Astronomy Letters
Volume	30
Issue number	9
DOIs	https://doi.org/10.1134/1.1795949
State	Published - Sep 2004

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Sun

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10.1134/1.1795949

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title = "Natural spectral bandwidth of electron cyclotron maser emission",

abstract = "We studied the spectral properties of the electron cyclotron maser emission generated by anisotropic distributions of fast electrons with power-law magnitude distributions in solar flares. The natural bandwidth of the generated spectral line depends significantly on the angle between the direction of the wave emission and the direction of the magnetic field in the source. In addition, the line bandwidth depends on the parameters of the momentum and pitch-angle distribution functions for fast electrons. The typical spectral bandwidths are shown to lie within the range 0.1-0.4%, in agreement with the minimum observable bandwidths of millisecond solar radio spikes.",

keywords = "Sun",

author = "Gregory Fleishman",

note = "Funding Information: This work was supported in part by the Russian Foundation for Basic Research (project nos. 02-02-39005 and 03-02-17218), the Chinese NFS (no. 10273025), and the “973” program (no. G2000078403).",

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N1 - Funding Information: This work was supported in part by the Russian Foundation for Basic Research (project nos. 02-02-39005 and 03-02-17218), the Chinese NFS (no. 10273025), and the “973” program (no. G2000078403).

PY - 2004/9

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N2 - We studied the spectral properties of the electron cyclotron maser emission generated by anisotropic distributions of fast electrons with power-law magnitude distributions in solar flares. The natural bandwidth of the generated spectral line depends significantly on the angle between the direction of the wave emission and the direction of the magnetic field in the source. In addition, the line bandwidth depends on the parameters of the momentum and pitch-angle distribution functions for fast electrons. The typical spectral bandwidths are shown to lie within the range 0.1-0.4%, in agreement with the minimum observable bandwidths of millisecond solar radio spikes.

AB - We studied the spectral properties of the electron cyclotron maser emission generated by anisotropic distributions of fast electrons with power-law magnitude distributions in solar flares. The natural bandwidth of the generated spectral line depends significantly on the angle between the direction of the wave emission and the direction of the magnetic field in the source. In addition, the line bandwidth depends on the parameters of the momentum and pitch-angle distribution functions for fast electrons. The typical spectral bandwidths are shown to lie within the range 0.1-0.4%, in agreement with the minimum observable bandwidths of millisecond solar radio spikes.

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JO - Astronomy Letters

JF - Astronomy Letters

IS - 9

ER -

Natural spectral bandwidth of electron cyclotron maser emission

Abstract

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