Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976a%26a....49..263b&link_type=abstract
Astronomy and Astrophysics, vol. 49, no. 2, June 1976, p. 263-269.
Astronomy and Astrophysics
Astrophysics
14
Shell Stars, Spectrum Analysis, Stellar Envelopes, Stellar Spectrophotometry, Ultraviolet Spectra, Ultraviolet Spectrophotometers, Absorption Spectra, Graphs (Charts), Radial Velocity, Spectral Energy Distribution, Spectral Resolution, Td-1 Satellite
Scientific paper
Magnitude and color variations are observed in the S 2/68 UV spectra of Zeta Tau, whereas the depth of the absorption features appears to stay mainly constant. The spectral type deduced from the energy-distribution envelope and the depth of the absorption features at 1410, 1555, and 1615 A is earlier than that deduced from optical observations, in agreement with other UV observations. On the other hand, Zeta Tau shows a large UV defect, probably due to the absorbing shell.
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