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http://dx.doi.org/10.1007/s10509-014-1881-3

has been cited by the following article:

• TITLE: Radio Signatures of Sunspot NOAA 12192

  AUTHORS: Minttu Uunila, Juha Kallunki

  KEYWORDS: Solar Activity, Solar Flare, Solar Cycle, Solar Radio Burst

  JOURNAL NAME: International Journal of Astronomy and Astrophysics, Vol.4 No.4, December 19, 2014

  ABSTRACT: In this paper, we present an overview of radio signatures of sunspot NOAA 12192 measured with various instruments with frequencies of 37 GHz, 11.2 GHz and 200 - 400 MHz at Aalto University Metsahovi Radio Observatory (MRO). The data were observed during October 20 - 29, 2014. In total, 12 solar radio bursts at 11.2 GHz and 8 at 200 - 400 MHz, with varying intensities and properties, were observed. Radio brightening was captured in several solar radio maps. NOAA 12192 is the largest observed sunspot during solar cycle 24. We show that this exceptional radio brightening belongs to the strongest category including less than 5% of radio brightenings ever measured at MRO.