The angular size of the high-redshift quasar Q0000-398

Details The angular size of the high-redshift quasar Q0000-398 The angular size of the high-redshift quasar Q0000-398

Apr 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.278..530c&link_type=abstract

Nature, Volume 278, Issue 5704, pp. 530 (1979).

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Scientific paper

THE optically selected quasar1 Q0000-398 has a redshift2 z = 2.827. This quasar has been identified with a faint double radio source whose angular extent is 134 +/- 40 arc s. As all known high-redshift radio-selected quasars have much smaller angular sizes, it has been suggested that the upper envelope of the angular size-redshift diagram of radio quasars is depressed by an anticorrelation of linear size and radio luminosity3. We show here, first that the radio source associated with Q0000-398 is compact and centred on the optical quasar, and second that there is no evidence in our data on other quasars for the suggested anticorrelation.

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