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X-ray photographs of a solar active region with a multilayer telescope at normal incidenceAn astronomical photograph was obtained with a multilayer X-ray telescope. A 4-cm tungsten-carbon multilayer mirror was flown as part of an experimental solar rocket payload, and successful images were taken of the sun at normal incidence at a wavelength of 44 A. Coronal Si XII emission from an active region was recorded on film; as expected, the structure is very similar to that observed at O VIII wavelengths by the Solar Maximum Mission flat-crystal spectrometer at the same time. The small, simple optical system used in this experiment appears to have achieved a resolution of 5 to 10 arcsec.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Underwood, J. H.
(California, University Berkeley, United States)
Bruner, M. E.
(California Univ. Berkeley, CA, United States)
Haisch, B. M.
(California Univ. Berkeley, CA, United States)
Brown, W. A.
(California Univ. Berkeley, CA, United States)
Acton, L. W.
(Lockheed Research Laboratories Palo Alto, CA, United States)
Date Acquired
August 13, 2013
Publication Date
October 2, 1987
Publication Information
Publication: Science
Volume: 238
ISSN: 0036-8075
Subject Category
Solar Physics
Accession Number
Funding Number(s)
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