Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.119..239s&link_type=abstract
(IAU, Asian-Pacific Regional Meeting, 3rd, Kyoto, Japan, Sept. 30-Oct. 5, 1984) Astrophysics and Space Science (ISSN 0004-640X),
Astronomy and Astrophysics
Astronomy
1
Astrometry, Radio Sources (Astronomy), Southern Sky, Visible Spectrum, Quasars, Sky Surveys (Astronomy), Very Long Base Interferometry
Scientific paper
Several programmes are making use of UKST Sky Survey plates to identify southern radio sources. The fine-grain modern plates and accurate radio positions give a much improved identification rate. It seems that it will very soon be possible to determine whether or not there is a quasar redshift cut-off at z ≡ 4. There is an urgent need for more accurate fundamental reference star positions in the South.
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