Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-11-07
Astronomy and Astrophysics
Astrophysics
4 pages, 2 Postscript figures. Submitted to Conference proceeding Symbiotic stars probing stellar evolution. ASP Conference Se
Scientific paper
We present an analysis of optical and near infrared spectra of the eclipsing symbiotic system FN Sgr. In particular, we have determined for the first time spectroscopic orbits based of the radial velocity curves for both components. A set of blue absorption lines resembling an A-F type star is present in all our spectra. They seem to be associated with the hot component but the best orbital fitting corresponds to a larger eccentricity. We have also studied spectral changes and photometric variations in function of both the hot component activity and the orbital motion.
Belczynski Krzysztof
Brandi Estela
Ferrer Osvaldo E.
Garcia Lia G.
Kulczycki K.
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