Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.279..701a&link_type=abstract
Nature, vol. 279, June 21, 1979, p. 701-703. NSF-supported research.
Astronomy and Astrophysics
Astronomy
160
Emission Spectra, Periodic Variations, Radio Sources (Astronomy), Red Shift, Doppler Effect, Helium, Hydrogen, Radial Velocity
Scientific paper
A kinematic model for the bizarre emission-line object SS433 is proposed in which the radiation with variable Doppler shift is emitted by hot matter ejected from the central object at high but nearly constant velocity in oppositely directed narrow streams, possibly along a magnetic axis. According to this model, rotation of the beam axis provides the observed radial-velocity variations, and the observed emission is produced when matter reaches a critical distance from the central object and cools sufficiently to recombine. Specific predictions are made regarding the behavior of the variable velocity components during the as-yet unobserved portions of the 164-day period.
Abell George O.
Margon Bruce
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