Fagundes, P.R.; Pezzopane, M.; Habarulema, J.B.; Venkatesh, K.; Dias, M.A.L.; Tardelli, A.; de Abreu, A.J.; Pillat, V.G.; Pignalberi, A.; Bolzan, M.J.A.; Ribeiro, B.A.G.; Vieira, F.; Raulin, J.P.; Denardini, C.M.; Arcanjo, M.O.; Seemala, G.K.
(2020)
On September 6, 2017, the solar active region AR 2673 emitted two solar flares: the first at 08:57 UT (X2.2) and the second at 11:53 UT (X9.3); both were powerful enough to black-out high and low frequency radio waves ...