Numerical simulations of the 'jet' in the Crab nebula

Details Numerical simulations of the 'jet' in the Crab nebula Numerical simulations of the 'jet' in the Crab nebula

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.250..750c&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 250, June 15, 1991, p. 750-759. Research supported by M

Astronomy and Astrophysics

Astrophysics

12

Crab Nebula, Stellar Models, Stellar Winds, Cool Stars, Cooling Flows (Astrophysics), Digital Simulation, Plasma Jets, Supernova Remnants

Scientific paper

Observations and earlier models of the 'jet' in the Crab nebula are reviewed, and a new model, in which the jet is formed by material from the supernova remnant propagating up the interior of a cooled star trail left by the progenitor, is described. This model is similar to a previous model for the jet by Blandford et al. (1983), but differs in that the jet lies in the plane of the sky, and the Crab's progenitor moves supersonically rather than subsonically through the interstellar medium. Numerical simulations indicate that the model offers a successful description of the structure of the jet. In the light of these simulations it is concluded that the nebula is situated within the warm component of the interstellar medium, and that its proposed outer halo does not exist.

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