Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....93..320f&link_type=abstract
Astronomy and Astrophysics, vol. 93, no. 1-2, Jan. 1981, p. 320-324.
Astronomy and Astrophysics
Astronomy
2
Absorption Spectra, Line Spectra, Novae, Stellar Spectra, Ultraviolet Astronomy, Interstellar Matter, Iron, Manganese, Spectral Line Width
Scientific paper
The narrow Fe II and Mn II absorption lines observed by the IUE satellite have been studied by the curve-of-growth method. Data on the line of sight column densities, including the Fe II/Mn II and the nonexcited Fe II/slightly excited Fe II ratios, have been obtained. It is shown that the line wavelength shifts and the physical characteristics of the line formation region studied are more easily understood if assumed to be circumstellar rather than interstellar.
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