The SOHO Mission -

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Résumé :
SOHO, the Solar and Heliospheric Observatory, is a project of international cooperation between ESA and NASA to study the Sun, from its deep core to the outer corona, and the solar wind. To achieve its scientific goals it carries a complement of twelve sophisticated, state-of-the-art instruments. Three helioseismology instruments are expected to provide unique data for the study of the structure and dynamics of the solar interior, from the very deep core to the outermost layers of the convection zone. A set of five complementary remote sensing instruments, consisting of EUV and UV imagers, spectrographs and coronagraphs, will give us our first comprehensive view of the outer solar atmosphere and corona, leading to a better understanding of the enigmatic coronal heating and solar wind acceleration processes. Finally, three experiments will complement the remote sensing observations by making <em>in-situ</em> measurements of the composition and energy of the solar wind and charged energetic particles. This volume contains detailed descriptions of all the twelve instruments on board SOHO. Also included are an overview paper and a description of the SOHO ground system, science operations and data products. The aim of these papers is to make the broader scientific community, and in particular potential guest investigators, aware of the scientific objectives and capabilities of the SOHO payload and to provide a reference document for the various instruments.

Sommaire:
Foreword; R.M. Bonnet. Preface; B. Fleck, et al. The SOHO Mission: An Overview; V. Domingo, et al. Global Oscillations at Low Frequency from the SOHO Mission (GOLF); O.C. St. Cyr, et al. VIRGO: Experiment for Helioseismology and Solar Irradiance Monitoring; C. FrÖhlich, et al. The Solar Oscillations Investigation - Michelson Doppler Imager; P.H. Scherrer, et al. SUMER - Solar Ultraviolet Measurements of Emitted Radiation; K. Wilhelm, et al. The Coronal Diagnostic Spectrometer for the Solar and Heliospheric Observatory; R.A. Harrison, et al. EIT: Extreme-Ultraviolet Imaging Telescope for the SOHO Mission; J.-P. Delaboudini?re. The Ultraviolet Coronagraph Spectrometer for the Solar and Heliospheric Observatory; J.L. Kohl, et al. The Large Angle Spectroscopic Coronagraph (LASCO); G.E. Brueckner, et al. SWAN: A Study of Solar Wind Anisotropies on SOHO with Lyman Alpha Sky Mapping; J.L. Bertauz, et al. CELIAS - Charge, Element and Isotope Analysis System for SOHO; D. Hovestadt, et al. COSTEP - Comprehensive Suprathermal and Energetic Particle Analyzer; R. MÜller-Mellin, et al. Energetic Particle Experiment ERNE; J. Torsti, et al.