Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984nascp2349..235g&link_type=abstract
In NASA. Goddard Space Flight Center Future of Ultraviolet Astronomy Based on Six Years of IUE Res. p 235-238 (SEE N85-20961 1
Astronomy and Astrophysics
Astronomy
1
Hot Stars, Linear Polarization, Stellar Radiation, Ultraviolet Spectra, Variable Stars, Visible Spectrum, Iue, Lyman Alpha Radiation, Stellar Envelopes, Stellar Winds
Scientific paper
Coordinated IUE high dispersion and visual observations of omega Orionis (HD 37490, B2 IIIe) in 1982 to 1983 covering periods of both low and high B-band linear polarization showed that line profile variability seen in the ultraviolet resonance lines of Si IV and C IV is not correlated with the visual continuum polarization state of the star. Variations in the visual colors and continuum fluxes are correlated with the amount of linear polarization. H-alpha emission strength variations are only weakly correlated with the polarization activity. The variation seen in C IV and Si IV is consistent with density perturbations propagating through the wind acceleration zone. The observed data are interpreted as indicating that the stellar wind is latitudinally separated from the continuum scattering envelope.
Barker Paul K.
Grady Carol A.
Guinan Edward F.
Hayes Daniel P.
Henrichs Hubertus F.
No associations
LandOfFree
Coordinated ultraviolet and visual observations of Omega Orionis 1982-1983 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 Coordinated ultraviolet and visual observations of Omega Orionis 1982-1983, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coordinated ultraviolet and visual observations of Omega Orionis 1982-1983 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-738407