A Multiwavelength Study of Coronal Structure: A Simultaneous Observation from NIXT and YOHKOH

Details A Multiwavelength Study of Coronal Structure: A Simultaneous Observation from NIXT and YOHKOH A Multiwavelength Study of Coronal Structure: A Simultaneous Observation from NIXT and YOHKOH

Feb 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998sao..reptr....g&link_type=abstract

Technical Report, NASA/CR-1998-207450; NAS 1.26:207450

Physics

Coronal Loops, Coronas, Plasmas (Physics), Solar Corona, Solar X-Rays, X Ray Telescopes, Sensitivity, Morphology

Scientific paper

Solar soft X-ray images taken simultaneously by the Yohkoh and the Normal Incidence X-ray Telescope (NIXT) reveal significantly different coronal structures. Coronal loops are more clearly seen in the Yohkoh images, and the isolated island-like structures seen in the NIXT image have been found to correspond to the footpoints of the Yohkoh loops. The difference is due to the difference in the temperature response of the telescopes: NIXT is sensitive to temperatures ranging from 0.9 to 3 MK, while Yohkoh is more sensitive to temperatures above 2.5 MK. The morphological differences reflect the multi-temperature (1-5 MK) nature of the solar coronal plasmas.

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