Global Variations and Asymmetry of the Sun During Extremely High Activity in October–November 2003     

I. S. Veselovsky  A. V. Dmitriev  I. A. Zhitnik  A. N. Zhukov  M. A. Zel’dovich  S. V. Kuzin  A. A. Naumkin  I. G. Persiantsev  A. Yu. Ryazanov  Yu. S. Shugai  O. S. Yakovchuk  S. V. Bogachev  S. V. Shestov 《Solar System Research》2005,39(3):169-175

The data of the Coronas F satellite and other spacecraft were used to show that, in October–November 2003, global variations in brightness occurred in all spectral regions of the solar electromagnetic radiation. The variations were asymmetric in heliolongitude. This phenomenon was accompanied by an extremely strong energy release in the form of coronal-mass ejections and solar flares. The most powerful of them took place on the solar side that was characterized by an enhanced brightness even before these events. As a result, superimposed corotating and sporadic disturbances, which are partly correlated, can be traced in parameters of the solar atmospheric radiation, flows of the solar-wind plasma, and heliospheric magnetic field.__________Translated from Astronomicheskii Vestnik, Vol. 39, No. 3, 2005, pp. 195–201.Original Russian Text Copyright © 2005 by Veselovsky, Dmitriev, Zhitnik, Zhukov, Zel’dovich, Kuzin, Naumkin, Persiantsev, Ryazanov, Shugai, Yakovchuk, Bogachev, Shestov.  相似文献   

Statistical Links between Solar Cosmic Rays,Type-II Radio Emission,and Coronal Mass Ejections     

Bazilevskaya  G. A.  Logachev  Yu. I.  Daibog  E. I.  Vlasova  N. A.  Ginzburg  E. A.  Ishkov  V. N.  Lazutin  L. L.  Nguyen  M. D.  Surova  G. M.  Yakovchuk  O. S. 《Geomagnetism and Aeronomy》2021,61(5):773-779

Geomagnetism and Aeronomy - Type-II radio emission often accompanies events in solar cosmic rays and is an indicator of the propagation of a shock wave in the solar corona. Conversely, the shock...  相似文献   

On forecasting solar proton events using a ground-based neutron monitor     

I. S. Veselovskii  O. S. Yakovchuk 《Solar System Research》2011,45(4):354-364

Results of applying the method developed for early warning about arrival of ∼10–100-MeV proton fluxes to the Earth after powerful eruptive events on the Sun, which uses the real time observable data received by the global network of ground-based neutron monitors (Mavromichalaki et al., 2009), are discussed. The retrospective analysis and comparison to the 2001–2006 observations indicate that more than 50% of solar proton events were omitted in such a forecasting method. For higher reliability, it is necessary to use additional data on the state of solar and heliospheric activity.  相似文献