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Analysis of the ultraviolet spectrum (2000 A to 3000 A) of Vega.

Sadakane, K.; Hirata, R.; Nishimura, M.

A high-dispersion spectrum of Vega between 2000 and 3000 A is analyzed. The continuum level is determined by searching for line-free windows, comparing the observed spectrum with a synthesized one. The damping constant of the Fe II lines arising from low-excitation levels is found to be very close to the classical value. The microturbulence parame…