Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...170...77d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 170, no. 1, Dec. 1986, p. 77-83.
Astronomy and Astrophysics
Astronomy
7
B Stars, Emission Spectra, Far Ultraviolet Radiation, Stellar Spectra, Ultraviolet Astronomy, Variable Stars, Aluminum, Atmospheric Ionization, Balmer Series, High Dispersion Spectrographs, Iron, Silicon, Variability
Scientific paper
Far UV observations of Theta CrB obtained in 1980-1985 with the IUE are presented which provide evidence for long-term variability patterns associating the shape, velocity and strength of the Si IV, Al III, and Fe III lines. A differential variable behavior between lines arising from different ionization levels is also noted. The present results are in contradiction with the findings of Underhill (1985), and it is suggested that her results are biased by the averaging of velocities, which lowered the amplitude of the velocity variations, and by the higher weight given to the period of time when the expansion velocities were constant.
Doazan Vera
Morossi Carlo
Stalio Roberto
Thomas Nicholas R.
No associations
LandOfFree
Far UV variability of Theta CrB in 1980-1985. II - Evidence for variability patterns and ionization dependence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Far UV variability of Theta CrB in 1980-1985. II - Evidence for variability patterns and ionization dependence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Far UV variability of Theta CrB in 1980-1985. II - Evidence for variability patterns and ionization dependence will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1120746