Heliospheric magnetic fields, energetic particles, and the solar cycle
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Abstract
The heliosphere is the region filled with magnetized plasma of mainly solar origin. It extends from the solar corona to well beyond the planets, and is separated from the interstellar medium by the heliopause. The latter is embedded in a complex and still unexplored boundary region. The characteristics of heliospheric plasma, fields, and energetic particles depend on highly variable internal boundary conditions, and also on quasi-stationary external ones. Both galactic cosmic rays and energetic particles of solar and heliospheric origin are subject to intensity variations over individual solar cycles and also from cycle to cycle. Particle propagation is controlled by spatially and temporally varying interplanetary magnetic fields, frozen into the solar wind. An overview is presented of the main heliospheric components and processes, and also of the relevant missions and data sets. Particular attention is given to flux variations over the last few solar cycles, and to extrapolated effects on the terrestrial environment.
Key words
Heliosphere heliopause termination shock solarcycle energetic particles interplanetary neutrals anomalous component cosmic rays interplanetary magnetic fieldsPreview
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References
- Balogh, A.et al. (eds.) 1999,Corotating Interaction Regions, (Kluwer Academic Publishers: Dordrecht); AlsoSpace Science Reviews,89. Google Scholar
- Bose, N. K., 1948,Selections from Gandhi, (Navajivan Publishing House: Ahmedabad).Google Scholar
- Feynman, J. G.et al. 1993,J. Geophys. Res.,98, 13281.ADSCrossRefGoogle Scholar
- Fisk, L. A.et al. (eds.) 1998,Cosmic Rays in the Heliosphere, (Kluwer Academic Publishers: Dordrecht); AlsoSpace Science Reviews,83. Google Scholar
- Frisch, P. C. 1995,Space Sci. Rev.,72, 499.CrossRefADSGoogle Scholar
- Horbury, T. S. 1999, inPlasma Turbulence and Energetic Particles in Astrophysics, (eds.) M. Ostrowski & R. Schlickeiser, (Cracow) 115.Google Scholar
- Nymmik, R. A. 1999, inProceedings of the 26th International Cosmic Ray Conf,6, (eds.) D. Kiedaet al., (Salt Lake City, USA) 268.Google Scholar
- Paularena, K. I., King, J. H. 1999, inInterball in the ISTP Program, (eds.) D. G. Sibeck & K. Kudela, (Kluwer Acad. Publishers: Dordrecht) 145.Google Scholar
- Reedy, R. 1996, inSolar Drivers of Interplanetary and Terrestrial Disturbances, Astron. Soc. Pacific Conf. Series,95,(San Francisco) 429.ADSGoogle Scholar
- Schwenn, R., Marsch, E. (eds.) 1991,Physics of the Inner Heliosphere II —Particles, Waves and Turbulence, (Springer: Berlin).Google Scholar
- Simpson, J. A. 1985, inEarly History of Cosmic Ray Studies, (eds.) I. Sekido & H. Elliot, (Reidel Publishing Company) 385.Google Scholar
- Wdowczyk, J., Wolfendale, A. W. 1977,Nature,268, 510.CrossRefADSGoogle Scholar