Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..46..379h&link_type=abstract
Astrophysics and Space Science, vol. 46, Feb. 1977, p. 379-387.
Astronomy and Astrophysics
Astronomy
2
Astronomical Spectroscopy, Binary Stars, Satellite Observation, Ultraviolet Spectra, Classifications, Line Spectra, Spaceborne Astronomy, Spectral Resolution, Td-1 Satellite
Scientific paper
Ultraviolet spectra of Omicron And, Alpha CrB, Eta Ori A, and Alpha Vir, which were obtained with the S59 spectrometer at a resolution of 1.7 A in three 100-A-wide regions centered at 2110, 2454, and 2825 A, have been studied for the presence or absence of effects due to their binary nature. As may have been anticipated from their orbital and other characteristics, no indication of strong binary interactions were seen in these observations. However, there are certain spectral peculiarities suggesting the possibility of modifications of spectral classifications for some of these objects. A rather unusual spectral behavior in Alpha Vir is also noted. In addition, based primarily on a review of available literature, attention is drawn to a remarkable property of the third component in Eta Ori A.
Herczeg Tibor J.
Kondo Yoshihiko
van der Hucht Karel A.
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