Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.301..586b&link_type=abstract
Nature, vol. 301, Feb. 17, 1983, p. 586, 587. Research supported by the Alfred P. Sloan Foundation
Astronomy and Astrophysics
Astronomy
20
Astronomical Models, Crab Nebula, Red Giant Stars, Stellar Winds, Emission Spectra, H Lines, Jets, Oxygen, Stellar Mass Ejection
Scientific paper
It is proposed that the jet which has been observed protruding from the northern rim of the Crab Nebula is a tubular trail of material lost by the presupernova star during its red giant phase. The movement of the red giant's stellar wind is analyzed to show that the mass profile downstream should be concentrated within a narrow cylinder. The parameters of the tube predicted by this model are presented and an observational test of the model based on the hydrogen-to-helium abundance ratio in the jet and in the Nebula as a whole is suggested; the model predicts that the ratio in the jet should be larger.
Blandford Roger. D.
Kennel Charles F.
McKee Christopher F.
Ostriker Jeremiah P.
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