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Title:
Ultraviolet spectrophotometry from Gemini 11 of stars in Orion
Authors:
Morgan, T. H.; Spear, G. G.; Kondo, Y.; Henize, K. G.
Affiliation:
AA(NASA, Johnson Space Center, Houston, Tex.), AB(NASA, Johnson Space Center; Houston, University, Houston, Tex.), AC(NASA, Johnson Space Cente; Houston, University, Houston, Tex; Oklahoma, University, Norman, Okla.), AD(NASA, Johnson Space Center, Houston; Texas, University, Dallas, Tex.)
Publication:
Astrophysical Journal, vol. 197, Apr. 15, 1975, pt. 1, p. 371-373, 375-377. (ApJ Homepage)
Publication Date:
04/1975
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
Early Stars, Main Sequence Stars, Spaceborne Astronomy, Stellar Spectrophotometry, Supergiant Stars, Ultraviolet Spectra, Astronomical Models, Gemini 11 Flight, Stellar Atmospheres, Stellar Spectra, Ubv Spectra
DOI:
10.1086/153523
Bibliographic Code:
1975ApJ...197..371M

Abstract

Ultraviolet spectrophotometry in the wavelength region 2600-3600 A is reported for the bright early-type stars beta, eta, gamma, delta, iota, epsilon, sigma, zeta, and kappa Ori. The results are in good agreement with other observations, and, with the possible exception of the supergiants, are in good agreement with recent line-blanketed model atmospheres. There is evidence that the supergiants possess a small ultraviolet deficiency shortward of 3000 A relative to main-sequence stars of similar spectral type. The most extreme example of this phenomenon is the star kappa Ori.

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