VLBI observations of hot spots in the lobes of distant radio sources

Details VLBI observations of hot spots in the lobes of distant radio sources VLBI observations of hot spots in the lobes of distant radio sources

Feb 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.277..610k&link_type=abstract

Nature, vol. 277, Feb. 22, 1979, p. 610-615.

Astronomy and Astrophysics

Astronomy

25

Extragalactic Radio Sources, Radio Astronomy, Very Long Base Interferometry, Cosmology, Quasars, Radio Telescopes, Red Shift, Stellar Evolution, Stellar Luminosity

Scientific paper

A description is presented of observations of the lobes of high luminosity 3CR sources carried out with a very-long-baseline interferometer (VLBI) system using the Westerbork synthesis array and the Effelsberg 100-m antenna. Compact components containing significant fractions of the total flux densities in sizes not exceeding 0.15 arcsec have been detected in the lobes of several radio sources of large redshift. These compact components have luminosities comparable to those of hot spots in nearby sources of similar total luminosity. There is, however, some indication that the physical sizes of these hot spots may have been smaller at earlier epochs.

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