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Interstellar extinction in the ultravioletInterstellar extinction curves over the region 3600-1100 A for 17 stars are presented. The observations were made by the two Wisconsin spectrometers onboard the OAO-2 with spectral resolutions of 10 A and 20 A. The extinction curves generally show a pronounced maximum at 2175 plus or minus 25 A, a broad minimum in the region 1800-1350 A, and finally a rapid rise to the far ultraviolet. Large extinction variations from star to star are found, especially in the far ultraviolet; however, with only two possible exceptions in this sample, the wavelength at the maximum of the extinction bump is essentially constant. These data are combined with visual and infrared observations to display the extinction behavior over a range in wavelength of about a factor of 20.
Document ID
19720024174
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bless, R. C. (Wisconsin Univ. Madison, WI, United States)
Savage, B. D. (Wisconsin Univ. Madison, WI, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Publication Information
Publication: NASA, Washington The Sci. Results from the Orbiting Astron. Obs. (OAO-2) e
Subject Category
Space Sciences
Accession Number
72N31824
Funding Number(s)
CONTRACT_GRANT: NAS5-1348
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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