Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...258..423m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 258, no. 2, p. 423-431.
Astronomy and Astrophysics
Astrophysics
21
Binary Stars, Cepheus Constellation, Iron Compounds, Metal Ions, Spectrum Analysis, Stellar Spectra, Absorption Spectra, Iue, Line Spectra, Ultraviolet Spectra
Scientific paper
Results of an analysis of the intensities of the numerous Fe II emission and absorption lines present in the UV spectrum of KQ Puppis are reported. The self-absorption curve method developed by Friedjung and Muratorio (1987) is used to analyze the emission line intensities. The Fe II terms with chi from 0 to 11.5 eV are found to be populated according to a Boltzmann-type law with a mean excitation temperature of 9000 +/- 700 K. Above about 8 eV many terms show a population excess which can be attributed to a significant contribution of dielectronic recombination, and to fluorescence effects. The lower limit to the cool component mass loss rate is estimated at (4 +/- 2) x 10 exp -6 solar mass/yr.
Baratta Giovanni Battista
Friedjung Michael
Muratorio Gérard
Rossi Claudio
Viotti Roberto
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