Understanding the Sun and Solar System Plasmas Future Directions in Solar and Space Physics (2004) / Chapter Skim
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The Heliosphere: The Domain of Solar and Space Physics
The Heliosphere: The Domain of Solar and Space Physics
Pages 8-11
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From page 8... ...
. Mars O F today, for example, has no strong global magnetic field, S O L A R and so the solar wind impinges directly on a significant fraction of its thin carbon dioxide atmosphere.
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From page 9... ...
But there is also a less well known tion that they emit or that passes through them. Solar and space fourth state, plasma, which occurs when a gas becomes so hot physics is unique among the space sciences in that, since the that electrons separate from the atoms that make up the gas, beginning of the space age, it has been able to sample solar resulting in a mix of negatively charged electrons and positive- system plasmas and their associated electric and magnetic ly charged ions.
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From page 10... ...
How do magnetic fields interconnect, causing the rapid con version of magnetic energy to charged-particle kinetic energy Solar and space physics, though "pure" in solar flares and magnetospheric substorms? How do the science, also yields important practical heliosphere and our galaxy interact?
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From page 11... ...
THE HELIOSPHERE MAJOR THEMES IN SOLAR AND SPACE PHYSICS RESEARCH In surveying the current state of ground-based and space-based research in solar and space physics and recommending directions for future research, the Solar and Space Physics Survey Committee organized the outstanding questions that will be the focus of solar and space physics investigations during the next decade in terms of the following five themes or challenges: THE SUN'S DYNAMIC INTERIOR AND CORONA Understanding the structure and dynamics of the Sun's interior, the generation of solar magnetic fields, the causes of solar activity and the origin of the solar cycle, and the structure and dynamics of the corona CHARTING THE HELIOSPHERE Understanding heliospheric structure, the distribution of magnetic fields and matter throughout the solar system, and the interaction of the solar atmosphere with the local interstellar medium SPACE ENVIRONMENTS OF EARTH AND OTHER SOLAR SYSTEM BODIES Understanding the space environments of Earth and other solar system bodies and their dynamical response to external and internal influences FUNDAMENTAL SPACE PLASMA PHYSICS Understanding the basic physical principles manifest in processes observed in solar and space plasmas SPACE WEATHER Developing near-real-time predictive capability for understanding and quantifying the impact on human activities of dynamical processes at the Sun, in the interplanetary medium, and in Earth's magnetosphere 11
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