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Stellar chemical abundances with the GHRS.

Leckrone, D. S.; Wahlgren, G. M.; Johansson, S. +2 more

The accurate quantitative analysis of high resolution ultraviolet spectra of ultra-sharp-lined, early-type, chemically peculiar stars, obtained with the Goddard High Resolution Spectrograph on the Hubble Space Telescope, has been made possible by the synergism between state-of-the-art astrophysics and state-of-the-art atomic spectroscopy. The auth…

High resolution UV stellar spectroscopy with the HST/GHRS, challenges and opportunities for atomic physics.

Leckrone, D. S.; Wahlgren, G. M.; Johansson, S. +1 more

The Goddard High Resolution Spectrograph (GHRS) on the Hubble Space Telescope (HST) is producing ultraviolet spectra of unprecedented resolution and photometric quality. The authors illustrate this with observations of the ultra-sharp-lined, chemically peculiar B-type star, χ Lupi. The photosphere of this star is rich in heavy elements, and its UV…