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Spectrophotometry of Epsilon Aur, 3295-8880 ASpectrophotometric scans were obtained at 8 A resolution from 3295 to 8880 A on twenty nights before, during, and after the recent eclipse of epsilon Aurigae, beginning with a pre-eclipse observation on 5 March 1982 U.T. The observations were reduced to absolute flux using the standard stars 109 Vir or xi(2) Ceti. The data confirm that the eclipse is essentially gray over the entire visible spectrum, as others have noted from broadband photometry. High resolution echellograms (450 to 6700 A) made through mid-eclipse and the scans show changes in the equivalent widths of H alpha, Na D, and O I as large as a factor of two.
Document ID
19860002711
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lockwood, G. W. (Lowell Observatory Flagstaff, AZ, United States)
Thompson, D. T. (Lowell Observatory Flagstaff, AZ, United States)
Lutz, B. L. (Lowell Observatory Flagstaff, AZ, United States)
Sowell, J. (Michigan Univ. United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1985
Publication Information
Publication: NASA, Washington The 1982-1984 Eclipse of Epsilon Aurigae
Subject Category
Astronomy
Accession Number
86N12178
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19860002701Collected WorksThe 1982-1984 Eclipse of Epsilon Aurigae
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