The confinement and cosmological evolution of extragalactic radio source components

Details The confinement and cosmological evolution of extragalactic radio source components The confinement and cosmological evolution of extragalactic radio source components

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...383...56u&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 383, Dec. 10, 1991, p. 56-59.

Mathematics

Logic

7

Cosmology, Extragalactic Radio Sources, Galactic Evolution, Quasars, Stellar Evolution, Analytic Functions, Intergalactic Media, Magnetic Fields, Mathematical Models

Scientific paper

Simple analytical models for the cosmological evolution of the linear sizes of extragalactic radio sources have been developed based on ram and thermal pressures of the intergalactic medium. The form of evolution is found, for suitable assumptions about the source magnetic field and energies. It is suggested that quasars may be confined by ram pressure, while galaxies are subject to thermal confinement.

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