Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/100103
Type: Artigo de periódico
Title: X-ray Observations In The Saa - Pulsations In Electron Precipitation Accompanied By Pc4 Events
Author: Jayanthi U.B.
Pereira M.G.
Martin I.M.
Trivedi N.B.
Lazutin L.
Abstract: A balloon experiment conducted on December 20, 1994, in the South Atlantic Anomaly (SAA) region, detected events with increases in x-ray flux due to electron precipitation coincident with a mild substorm activity. For the first time in the SAA, the analysis of the x-ray flux associated with the electron precipitation and the geomagnetic H-field component showed simultaneous Pc 4 pulsations at periods in the range 95 to 100 s. Analysis of a prominent precipitation event of this flight showed direct correlation between the pulsation strength in the x-ray and in the magnetic data and are related to the intensity of the precipitation. While the substorm associated electric fields and currents in the ionosphere can induce amplification of Pc 4 pulsations, the x-ray pulsations due to electron precipitation may be related to wave modulated pitch angle scatterings. © 1997 COSPAR. Published by Elsevier Science Ltd.
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Rights: fechado
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0042138328&partnerID=40&md5=b9f6e74d6bf4679bce1629bf67a46d53
Date Issue: 1997
Appears in Collections:Unicamp - Artigos e Outros Documentos

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