Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992balta...1...59l&link_type=abstract
Baltic Astronomy, vol. 1, p. 59
Astronomy and Astrophysics
Astronomy
Symbiotic Stars, Stellar Spectra, Stellar Models, Binary Stars, Black Body Radiation, Balmer Series, Ionized Gases
Scientific paper
Energy distributions in continuous spectra of various models of symbiotic stars in the wavelength range from 25 A to 20 cm have been computed. The impact of different input parameters on the shape of the continuum is investigated. It has been found that, for models with a blackbody as the hot component of the symbiotic system, both the effective temperature and the radius of the blackbody are very sensitive parameters, affecting remarkably the shape of the continuum. In the case of an accretion disk, the radius of the accreting star and the accretion rate are the most sensitive parameters while the mass of the accretor and the inclination angle of the disk affect the computed color indices only a little. The influence of ionized gas and a cold component is studied as well. The location of the computed models on two-color diagrams U-B, B-V and in the far-infrared region (12-100 microns) is investigated. It has been found that, on the far-infrared diagrams, S- and D-type symbiotic stars can be easily distinguished.
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