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Ultraviolet spectrophotometry of Sirius from Gemini 12The spectral energy distribution of Sirius between 2500 and 3700 A at a resolution of 7 A is obtained from plates taken on Gemini 12. The agreement with other observations and the most recent line-blanketed model atmospheres is good. The equivalent width of the Mg II doublet near 2800 A is 6.0 A, if the continuum level is represented by regions near 2650 and 2910 A. This is consistent with expectations for a hot Am star and implies line blocking of up to 15% in this wavelength region.
Document ID
19750026690
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/153098
Authors
Spear, G. G. (NASA Johnson Space Center; Houston, University Houston, Tex., United States)
Kondo, Y. (NASA Johnson Space Center Houston, Tex.; Oklahoma, University, Norman, Okla., United States)
Henize, K. G. (NASA Johnson Space Center Houston; Texas, University, Austin, Tex., United States)
Date Acquired
August 8, 2013
Publication Date
September 15, 1974
Publication Information
Publication: Astrophysical Journal
Volume: 192
Subject Category
Astrophysics
Accession Number
75A10762
Funding Number(s)
CONTRACT_GRANT: NGR-44-005-137
Distribution Limits
Public
Copyright
Other

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