Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...228..231n&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 228, no. 1, Feb. 1990, p. 231-237. Research supported by CNPq, FINEP, CAPES, e
Astronomy and Astrophysics
Astrophysics
40
Binary Stars, Reflection, Stellar Atmospheres, Stellar Models, Albedo, Convection, Illuminating, Irradiation
Scientific paper
The effects of external irradiation on model atmospheres with convection, and with spectral line absorption represented by opacity distribution functions are presented. The heating of optically thin layers associated with external irradiation, and the reduction of the temperature gradient in the continuum formation layers has noticeable effects on the spectrum of the illuminated star. The dependence of this reflection effect on the abundance of heavy elements, on the strength of convection, and on the properties (spectrum, angle of inclination) of the incident radiative flux is investigated. It is noted that the amount of disturbance of the illuminated model depends rather critically on whether or not there is a detailed match between the absorption features of the illuminating and illuminated stars.
Nordlund Aake
Vaz Luiz Paulo Ribeiro
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