Detection of high-energy gamma rays from winter thunderclouds

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dc.creatorTsuchiya, H.
dc.creatorEnoto, T.
dc.creatorYamada, S.
dc.creatorYuasa, T.
dc.creatorKawaharada, M.
dc.creatorKitaguchi, T.
dc.creatorKokubun, M.
dc.creatorKato, H.
dc.creatorOkano, M.
dc.creatorNakamura, S.
dc.creatorMakishima, K.
dc.date2007-08-22
dc.date.accessioned2026-07-07T10:57:13Z
dc.date.available2026-07-07T10:57:13Z
dc.descriptionA report is made on a comprehensive observation of a burst-like $γ$-ray emission from thunderclouds on the Sea of Japan, during strong thunderstorms on 2007 January 6. The detected emission, lasting for $\sim$40 seconds, preceded cloud-to-ground lightning discharges. The burst spectrum, extending to 10 MeV, can be interpreted as consisting of bremsstrahlung photons originating from relativistic electrons. This ground-based observation provides first clear evidence that strong electric fields in thunderclouds can continuously accelerate electrons beyond 10 MeV prior to lightning discharges.
dc.description12 pages, 4 figures, accepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0708.2947
dc.identifierhttp://arxiv.org/abs/0708.2947
dc.identifierPhys.Rev.Lett.99:165002,2007
dc.identifierdoi:10.1103/PhysRevLett.99.165002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186675
dc.subjectAstrophysics
dc.subjectGeophysics
dc.titleDetection of high-energy gamma rays from winter thunderclouds
dc.typetext

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