Far-UV variability of 0 CR B in 1985-86 - A progression toward higher velocities

Details Far-UV variability of 0 CR B in 1985-86 - A progression toward higher velocities Far-UV variability of 0 CR B in 1985-86 - A progression toward higher velocities

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...173l...8d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 173, no. 1, Feb. 1987, p. L8-L10.

Astronomy and Astrophysics

Astrophysics

4

B Stars, Far Ultraviolet Radiation, Mass Flow Rate, Stellar Mass Ejection, Stellar Spectrophotometry, Variable Stars, Iue, Resonance Lines, Spectrum Analysis, Ultraviolet Spectra

Scientific paper

New far UV observations of θ CrB obtained with the IUE in 1985 - 1986 are presented. They show that the far UV spectrum of that star has usually continued to exhibit the apparently low excitation state observed from mid-84 to mid-85. However, the C IV resonance lines are occasionally conspicuous and exhibit an even higher outflow velocity than during the preceding epochs of variation, when the C IV resonance lines were strong and frequently present. Such a long term progression toward higher expansion velocities has not yet been observed in any other Be star.

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