A single exhaust model for backward emission in Doppler quasars

Narlikar, J. V. ; Subramanian, K. (1983) A single exhaust model for backward emission in Doppler quasars The Astrophysical Journal, 273 (1). pp. 44-57. ISSN 0004-637X

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Official URL: http://iopscience.iop.org/0004-637X


The twin exhaust model of Blandford and Rees (1974) is adapted in the present astrophysical scenario for Hoyle's (1980) conjecture that quasars ejected at high velocities from active galactic nuclei predominantly radiate in a narrow backward cone. Through such backward emission, local Doppler theory can explain the fact that no blueshifted quasars are seen. It is held that a fast moving quasar encounters a strong ram pressure from the intergalactic medium in the forward direction which suppresses the forward exhaust. Attention is given to the hydrodynamic, gravitation theory, and radiation requirement constraints on the model, which is shown to accommodate them over a comfortable range of parameters, and which also helps in the understanding of some of the observable properties of quasars.

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