Soft X-ray/extreme ultraviolet images of the solar atmosphere with normal incidence multilayer optics

Details Soft X-ray/extreme ultraviolet images of the solar atmosphere with normal incidence multilayer optics Soft X-ray/extreme ultraviolet images of the solar atmosphere with normal incidence multilayer optics

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988spie..982..316l&link_type=abstract

IN: X-ray instrumentation in astronomy II; Proceedings of the Meeting, San Diego, CA, Aug. 15-17, 1988 (A89-40276 17-35). Bellin

Computer Science

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4

Optical Measuring Instruments, Solar Atmosphere, Ultraviolet Astronomy, X Ray Imagery, Cassegrain Optics, Grazing Incidence, Image Processing, Mirrors, Solar Corona, Sounding Rockets

Scientific paper

High-resolution images of the sun in the soft-X-ray/XUV range have been obtained with normal-incidence multilayer coated optics (MCOs) during a sounding-rocket flight on October 23, 1987 from White Sands. MCOs were used in two Cassegrain telescopes, as off-axis primary mirrors, and as tertiary mirrors operating with a Wolter-Schwarzschild (WS) grazing-incidence mirror. The inherent energy-selective property of MCOs allowed distinct groups of emission lines to be isolated in the solar corona and the transition region. Images were recorded at 173 and 256 A with the Cassegrain telescopes, at 256 A with a Herschelian telescope, and at 44, 173, and 256 A with the WS hybrid telescope. In addition, soft-X-ray images in the 8-18-A bandpass were obtained at the prime focus of the WS optics. The images show many features of the solar corona and transition region, including magnetically confined loops of hot solar plasma, coronal plumes, polar coronal holes, supergranulation, and features associated with overlying cool prominences.

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