A mechanism for bursty radio emission in planetary magnetospheres

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dc.contributor.authorWong, H. K.
dc.contributor.authorGoldstein, Melvyn
dc.date.accessioned2023-11-07T19:10:39Z
dc.date.available2023-11-07T19:10:39Z
dc.date.issued1990-11
dc.description.abstractBursty radio emissions are often observed from the polar magnetospheres of the Earth, Jupiter, Saturn, and Uranus in addition to the smooth radio emissions commonly detected. We show that in plasma regimes in which the electron plasma frequency is less than the electron cyclotron frequency, anisotropic electron beams or gyrating electron beams can excite directly broadband electromagnetic radiation. The largest growth is for right-hand X-mode radiation with frequencies above the electron cyclotron frequency. This instability can produce bursty, broadband emission, consistent with some of the properties of the radiation observed from the magnetized planets.en_US
dc.description.sponsorshipThis work was supported, in part, by the Space Physics Theory Program at the Goddard Space Flight Center and NASA grants NAGW-1620 and NAGW-1205 (Uranus Data Analysis Program) to the Southwest Research Institute.en_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/GL017i012p02229en_US
dc.format.extent4 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2uncr-webv
dc.identifier.citationWong, H. K., and M. L. Goldstein. “A Mechanism for Bursty Radio Emission in Planetary Magnetospheres.” Geophysical Research Letters 17, no. 12 (1990): 2229–32. https://doi.org/10.1029/GL017i012p02229.en_US
dc.identifier.urihttps://doi.org/10.1029/GL017i012p02229
dc.identifier.urihttp://hdl.handle.net/11603/30561
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Goddard Planetary Heliophysics Institute (GPHI)
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleA mechanism for bursty radio emission in planetary magnetospheresen_US
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-5317-988Xen_US

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