IUE high resolution observations of hot stars emitting coronal X-rays

Details IUE high resolution observations of hot stars emitting coronal X-rays IUE high resolution observations of hot stars emitting coronal X-rays

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982esasp.176..251b&link_type=abstract

In its 3rd European IUE Conf. p 251-257 (SEE N83-11889 02-88)

Computer Science

2

Far Ultraviolet Radiation, Hot Stars, Stellar Coronas, Stellar Spectra, X Ray Sources, Correlation Detection, Iue, Resonance Lines, Stellar Luminosity, Stellar Temperature, Stellar Winds, Ultraviolet Spectra

Scientific paper

Far UV resonance lines of 21 early stars, which were observed in the soft X-ray band with the Einstein satellite, were examined using IUE high resolution spectra to search for correlation between the X-ray coronal emission and far UV spectral properties. Quantities that give information on the structure of the outer envelope (e.g., wind terminal velocities, emission-absorption ratios) were measured and compared with the observed X-ray flux. A correlation, albeit with a very large scatter, of terminal velocity and bolometric luminosity appears. For NV and C IV resonance lines, equivalent width of the absorption components increases with effective temperature until an upper limit is reached.

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