Proceedings of the International Workshop (16th) White-Light ReflectingCoronagraph for the SWATH Mission Held in Sunspot, New Mexico on 16-20 October 1995

摘要

Particular circumstances on the solar surface that lead to coronal mass ejctions(CMEs) remain unclear, while many aspects of CMEs themselves and their impact on interplanetary space and the earth's environment are poorly understood. The great need for more data on CMEs and other coronal transients, especially observations with improved sensitivity and angular resolution. is reflected in the decision to include three coronagraphs, C1, C2, and C3 (LASCO module) on the SOHO spacecraft. C1 is an internally occulted coronagraph that uses an off axis parabolic objective mirror. The SWATH (Space Weather and Terrestrial Hazards) coronagraph described also has a mirror objective. but is externally occulted. It will be used to detect coronal transients, explore the feasibility of detecting space debris by coronagraphic techniques, as well as to record the white light corona with improved angular resolution for sttidies of the detailed morphology and evolution of coronal structures.