Radio jets at high red shift

Details Radio jets at high red shift Radio jets at high red shift

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986cajph..64..445l&link_type=abstract

(Conference on Jets from Stars and Galaxies, Toronto, Canada, June 24-27, 1985) Canadian Journal of Physics (ISSN 0008-4204), vo

Astronomy and Astrophysics

Astronomy

2

Quasars, Radio Jets (Astronomy), Red Shift, Statistical Analysis, Correlation, Relativistic Velocity

Scientific paper

Using preliminary results from a large observational program targeting high red-shift radio quasars, the total number of radio jets known beyond a red shift of 1.5 has been increased from 5 to 26, thus generating one of the most uniform and complete samples of radio jets in existence. An attempt has been made to test a type of radio-quasar model in which the appearance of a radio source is strongly influenced by its orientation relative to the line of sight. Four 'orientation indicators' are isolated, which should all be correlated with each other to some degree if the above-mentioned model is correct. It is found that only one pair of parameters shows a significant correlation, one that finds a natural explanation in the physics of radio sources, and therefore may not be due to orientation effects. It is concluded that the present sample of high red-shift jets shows no evidence of relativistic flow speeds on kiloparsec scales.

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