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Regular version of the site

Article

Evolution of the compact microwave inter-sunspot source before strong flare

Journal of Physics: Conference Series. 2017. Vol. 798. No. 1. P. 1 -4.
Bakunina I. A., Abramov-Maximov V., Osharin A.

Under this study we considered active region 09415 of the 23-rd cycle of solar activity which was observed with the 2D spatial resolution at three frequencies: 17 and 34 GHz with the Nobeyama Radioheliograph (NoRH) and 17 GHz with the Solar Siberian Radiotelescope (SSRT). We detected rapid development of a compact microwave source above the neutral line of the magnetic field of leading sunspot (NLS-source) few hours before the X-class flare. The position of this source is associated with the place of the maximum of magnetic field gradient at the photosphere.