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Preliminary report on IUE spectra of the Crab NebulaThe Crab Nebula is marginally observable with the IUE. Observations of the optically brightest filamentary regions, made with IUE in August 1979, show the C IV lambda 1549, He II lambda 1640, and C III lambda 1909 emission lines. The intensities of these lines were compared with the visual wavelength data. It appears that carbon is not overabundant in the Crab; carbon/oxygen is approximately normal and oxygen is slightly scarcer than normal as a fraction of the total mass.
Document ID
19810017435
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Davidson, K. (Minnesota Univ. Greenbelt, MD, United States)
Gull, T. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Maran, S. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stecher, T. P. (NASA Goddard Space Flight Center Irvine, United States)
Kafatos, M. (Geoge Mason Univ.)
Trimble, V. L. (California Univ.)
Date Acquired
August 11, 2013
Publication Date
January 1, 1981
Publication Information
Publication: The Universe at Ultraviolet Wavelengths: The First Two Yrs. of Intern. Ultraviolet Explorer
Subject Category
Astrophysics
Accession Number
81N25971
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer19810017357Collected WorksThe Universe at Ultraviolet Wavelengths: The first two years of International Ultraviolet Explorer
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