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Tanaka, Y. T; Raulin, Jean-Pierre; Bertoni, Fernando C. P.; Fagundes, P. R.; Chau Chong Shing, Jorge Luis; Schuch, N. J ... (American Astronomical Society, 2010-08)
We report on the first detection of ionospheric disturbances caused by short repeated gamma-ray bursts from the magnetar SGR J1550−5418. Very low frequency (VLF) radio wave data obtained in South America clearly show sudden amplitude and phase changes at the corresponding times of eight soft gamma-ray ...