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DOI	10.1126/science.238.4823.61
	X-ray photographs of a solar active region with a multilayer telescope at normal incidence
	Underwood J.H.; Bruner M.E.; Haisch B.M.; Brown W.A.; Acton L.W.
发表日期	1987
ISSN	0036-8075
起始页码	61
结束页码	64
卷号	238 期号:4823
英文摘要	An astronomical photograph was obtained with a multilayer x-ray telescope. A 4-centimeter 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 angstroms. 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 arc seconds.
英文关键词	PHOTOGRAPHY; SOLAR RADIATION; SPACE PROBES; TELESCOPES; X-RAYS; ASTRONOMICAL PHOTOGRAPHS; MULTILAYER X-RAY TELESCOPE; SOLAR ACTIVE REGIONS; SUN; TUNGSTEN-CARBON MULTILAYER MIRROR; ASTRONOMY
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245803
作者单位	Lawrence Berkeley Laboratory, Berkeley, CA 94720, United States; Lockheed Palo Alto Research Laboratory, Palo Alto, CA 94304, United States
推荐引用方式 GB/T 7714	Underwood J.H.,Bruner M.E.,Haisch B.M.,et al. X-ray photographs of a solar active region with a multilayer telescope at normal incidence[J],1987,238(4823).
APA	Underwood J.H.,Bruner M.E.,Haisch B.M.,Brown W.A.,&Acton L.W..(1987).X-ray photographs of a solar active region with a multilayer telescope at normal incidence.Science,238(4823).
MLA	Underwood J.H.,et al."X-ray photographs of a solar active region with a multilayer telescope at normal incidence".Science 238.4823(1987).