Microwave radiation of solar active regions before X flares according to the RATAN-600 observations in 2011
作者： V. E. Abramov-Maximov , V. N. Borovik , L. V. Opeikina
DOI: 10.1134/S0016793213080021
关键词:
摘要: The evolution of the microwave radiation from four active regions, where strong X-ray flares (X-class, GOES) occurred in 2011, has been studied. Daily multiwavelength RATAN-600 radio observations Sun 1.6–8.0 cm range have used. It indicated that radiosource above photospheric magnetic field neutral line (above region with maximal convergence fields opposite sign) becomes predominant structure one to two days before a powerful flare as eruptive events previously studied RATAN-600. appearance such possibly reflects current sheet formation corona region. energy necessary for is stored region, which can be considered factor predicting flare.
springer.com
harvard.edu
sci-hub.se 参考文章(5)
B. V. Somov, Non-neutral current sheets and solar flare energetics Astronomy and Astrophysics. ,vol. 163, pp. 210- 218 ,(1986)
K. Shibasaki, C. E. Alissandrakis, S. Pohjolainen, Radio Emission of the Quiet Sun and Active Regions (Invited Review) Solar Physics. ,vol. 273, pp. 309- 337 ,(2011) , 10.1007/S11207-011-9788-4
V. N. Borovik, I. Yu. Grigor’eva, A. N. Korzhavin, Local maximum in the microwave spectrum of solar active regions as a factor in predicting powerful flares Geomagnetism and Aeronomy. ,vol. 52, pp. 1032- 1043 ,(2012) , 10.1134/S001679321208004X
A. N. Korzhavin, L. V. Opeikina, N. G. Peterova, Transition region above sunspots inferred from microwave observations Astrophysical Bulletin. ,vol. 65, pp. 60- 74 ,(2010) , 10.1134/S1990341310010062
V. M. Bogod, T. I. Kaltman, L. V. Yasnov, On properties of microwave sources located above the neutral line of radial magnetic field Astrophysical Bulletin. ,vol. 67, pp. 425- 437 ,(2012) , 10.1134/S1990341312040062