Other
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...253..224j&link_type=abstract
Astrophysical Journal, Part 1, vol. 253, Feb. 1, 1982, p. 224-229.
Other
15
Binary Stars, Hot Stars, Iue, Stellar Spectrophotometry, Ultraviolet Spectra, Variable Stars, High Dispersion Spectrographs, Interstellar Extinction, Line Spectra, Mira Variables, Nebulae, Olivine, Stellar Atmospheres, Stellar Envelopes, Ultraviolet Spectrophotometers
Scientific paper
High- and low-dispersion observations made in 1980 are compared with earlier observations. Certain ultraviolet lines are apparently constant in the face of Mira pulsation and rotation and orbital motion of the hypothetical hot companion. Other line features and the ultraviolet continuum vary significantly but not in phase with the Mira. The Mg II doublet profile continued to show an asymmetry that is attributable to 200 km/s mass ejection. The remarkable levelness of the 1300-3100 A continuum (in ergs/sq cm s A) is confirmed, and the suggestion of a hot companion photosphere under circumstellar olivine-smoke extinction is discussed.
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