Spectroscopic orbits for symbiotic stars. I - The recurrent nova T Coronae Borealis

Details Spectroscopic orbits for symbiotic stars. I - The recurrent nova T Coronae Borealis Spectroscopic orbits for symbiotic stars. I - The recurrent nova T Coronae Borealis

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....91..125k&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 91, Jan. 1986, p. 125-131.

Astronomy and Astrophysics

Astronomy

83

Novae, Stellar Orbits, Stellar Spectrophotometry, Symbiotic Stars, Giant Stars, Radial Velocity, Stellar Mass, Ultraviolet Spectra

Scientific paper

The authors report new radial-velocity measurements of the giant component in the recurrent nova T Coronae Borealis. These data have been combined with existing observations to derive a new orbital solution and confirm previous estimates for the component masses. The orbital data and recent optical and ultraviolet spectra provide new support for a model in which a lobe-filling gM3 star loses material to a main-sequence companion star at a rate of ≡10-6M_sun;yr-1. T CrB appears to be at the onset of runaway case C mass exchange, and the authors expect an increase in the luminosity of the hot object over the next few decades.

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