Physics
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8519912.&link_type=abstract
Unknown
Physics
Explorer Satellites, Satellite Instruments, Scientific Satellites, Solar Corona, Solar Physics, Space Missions, Astronomical Models, Coronagraphs, Extreme Ultraviolet Radiation, Ground Support Equipment, Interplanetary Medium, Magnetometers, Satellite Orbits, Solar Magnetic Field, Solar Wind, Solar X-Rays, Space Plasmas, Time Measurement, Ultraviolet Spectrometers, X Ray Telescopes
Scientific paper
Mission objectives and spacecraft requirements for the Solar Corona Explorer (SCE), a proposed free flying, unmanned solar research craft to be tenatively launched in 1987, were defined. The SCE's purpose is to investigate structure, dynamics and evolution of the corona, globally and in the required physical detail, to study the close coupling between the inner corona and the heliosphere. Investigative objectives are: (1) to understand the corona as the source of varying interplanetary plasma and of varying solar X-ray and extreme ultraviolet fluxes; (2) to develop the capabilities to model the corona with sufficient precision to forecast the Earth's variable environment in space, on the scales from weeks to years; (3) to develop an understanding of the physical processes that determine the dynamics and physical state of the coronal plasma, particularly acceleration processes; and (4) to develop insight and test theory on the Sun applicable to stellar coronae and winds, and in particular, to understand why cool stars put such a large fraction of their energy into X-rays. Considered related factors are: (1) duration of the mission; (2) onboard measuring instrumentation; (3) ground support equipment and procedures; and (4) programs of interpretation and modeling.
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