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DETERMINING HOT STAR WIND TERMINAL VELOCITIES FROM LOW-RESOLUTION IUE DATA

PRINJA, RK; (1994) DETERMINING HOT STAR WIND TERMINAL VELOCITIES FROM LOW-RESOLUTION IUE DATA. ASTRON ASTROPHYS , 289 (1) 221 - 224.

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Abstract

Empirical relations are provided which enable consistent determinations of wind terminal velocities for hot stars where only low-resolution IU E spectra are available. The calibrations are based on terminal velocities derived from the violet limit of 'black' absorption troughs seen in high-resolution IU E spectra of saturated wind lines of hot stars, and the corresponding wavelengths of the absorption minima and emission peaks in low-resolution spectra of C IV lambda 1550 and N V lambda 1240 P Cygni profiles of the same stars. The relations may be applied to low-resolution IU E data of extragalactic WR and OB stars, and the nuclei of planetary nebulae.

Type:Article
Title:DETERMINING HOT STAR WIND TERMINAL VELOCITIES FROM LOW-RESOLUTION IUE DATA
Keywords:STARS, EARLY-TYPE, STARS, MASS-LOSS, ULTRAVIOLET, STARS, METHODS, DATA ANALYSIS, STELLAR WINDS, O-STARS
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy

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