Radio emission from symbiotic stars - A binary model

Details Radio emission from symbiotic stars - A binary model Radio emission from symbiotic stars - A binary model

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...286..263t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 286, Nov. 1, 1984, p. 263-268. Research supported by the Natural Sciences a

Astronomy and Astrophysics

Astronomy

81

Binary Stars, Radio Astronomy, Stellar Radiation, Symbiotic Stars, Computerized Simulation, Radio Spectra, Stellar Models, Stellar Spectra

Scientific paper

A binary model for symbiotic stars is examined, in order to account for their radio properties. The system is comprised of a cool, mass-losing star and a hot companion. Radio emission arises in the portion of the stellar wind photoionized by the hot star. Computer simulations for the case of uniform mass loss at constant velocity show that when less than half the wind is ionized, optically thick spectral indices greater than +0.6 are produced. Model fits to radio spectra allow the binary separation, wind density, and ionizing photon luminosity to be calculated. The model is applied to the symbiotic star H1 - 36. Some predictions and further tests of the model are pointed out.

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