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Ultraviolet spectrophotometry of Sirius from Gemini 12 (1974)

Henize, K. G. ; Kondo, Y. ; Spear, G. G.

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Publication Date: 2019-06-27

Description: The 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.

Keywords: ASTROPHYSICS

Type: Astrophysical Journal; 192; Sept. 15

Format: text

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