The asymmetry of low- and high-redshift radio galaxies

Details The asymmetry of low- and high-redshift radio galaxies The asymmetry of low- and high-redshift radio galaxies

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...241...22z&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 241, no. 1, Jan. 1991, p. 22-34. Research supported by the Leids-Kerhoven-Boss

Astronomy and Astrophysics

Astrophysics

13

Extragalactic Radio Sources, Radio Galaxies, Red Shift, Astronomical Models, Galactic Evolution, Galactic Structure, Luminosity, Radio Emission

Scientific paper

The relationships between the red shift and total radio luminosity of radio galaxies with the radio-source structural parameters asymmetry (A), bending (B), and linear size are investigated statistically and by means of numerical simulations. Published observational data on the GB/GB2 and C3 galaxies are compiled in tables and graphs and analyzed in detail. It is found that galaxies at z greater than 0.7 have A and B values larger than those of high-luminosity galaxies at lower z. The bright galaxies at low z have lower values of A and B than the weaker galaxies. The simulation results show that the observed features can be explained in terms of the effects of intergalactic-medium interactions on the velocities of noncollinear jets ejected from the core in opposite directions.

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