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Article: Interferometric observations of solar flares at 3 mm wavelength

TitleInterferometric observations of solar flares at 3 mm wavelength
Authors
Issue Date1993
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/asr
Citation
Advances In Space Research, 1993, v. 13 n. 9, p. 289-293 How to Cite?
AbstractWe report on the observations of a number of flares at a wavelength of 3.5 mm during the 1991 June solar campaign. Many flares, including small ones, show an impulsive phase at milllimeter wavelengths which indicates the presence of MeV electrons, and the millimeter observations are far more sensitive to such electrons than are current γ-ray detectors. However, these energetic electrons do not always show a good correlation with the lower-energy electrons which produce hard X-rays below 100 keV. The production efficiency of MeV electrons seems to vary considerably from flare to flare. An extended phase similar to the soft X-ray behaviour is also seen at millimeter wavelengths, which we attribute to dense hot material radiating thermal bremsstrahlung. In the impulsive onset the millimeter emission seems to be consistently delayed with respect to the hard X-rays. © 1993.
Persistent Identifierhttp://hdl.handle.net/10722/175134
ISSN
2015 Impact Factor: 1.409
2015 SCImago Journal Rankings: 0.606

 

DC FieldValueLanguage
dc.contributor.authorKundu, MRen_US
dc.contributor.authorWhite, SMen_US
dc.contributor.authorGopalswamy, Nen_US
dc.contributor.authorLim, Jen_US
dc.date.accessioned2012-11-26T08:49:22Z-
dc.date.available2012-11-26T08:49:22Z-
dc.date.issued1993en_US
dc.identifier.citationAdvances In Space Research, 1993, v. 13 n. 9, p. 289-293en_US
dc.identifier.issn0273-1177en_US
dc.identifier.urihttp://hdl.handle.net/10722/175134-
dc.description.abstractWe report on the observations of a number of flares at a wavelength of 3.5 mm during the 1991 June solar campaign. Many flares, including small ones, show an impulsive phase at milllimeter wavelengths which indicates the presence of MeV electrons, and the millimeter observations are far more sensitive to such electrons than are current γ-ray detectors. However, these energetic electrons do not always show a good correlation with the lower-energy electrons which produce hard X-rays below 100 keV. The production efficiency of MeV electrons seems to vary considerably from flare to flare. An extended phase similar to the soft X-ray behaviour is also seen at millimeter wavelengths, which we attribute to dense hot material radiating thermal bremsstrahlung. In the impulsive onset the millimeter emission seems to be consistently delayed with respect to the hard X-rays. © 1993.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/asren_US
dc.relation.ispartofAdvances in Space Researchen_US
dc.titleInterferometric observations of solar flares at 3 mm wavelengthen_US
dc.typeArticleen_US
dc.identifier.emailLim, J: jjlim@hku.hken_US
dc.identifier.authorityLim, J=rp00745en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-43949171472en_US
dc.identifier.volume13en_US
dc.identifier.issue9en_US
dc.identifier.spage289en_US
dc.identifier.epage293en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridKundu, MR=7102095820en_US
dc.identifier.scopusauthoridWhite, SM=7404079906en_US
dc.identifier.scopusauthoridGopalswamy, N=7005931847en_US
dc.identifier.scopusauthoridLim, J=7403453870en_US

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