Abstract
We report here the discovery of a quasar of redshift 3.61 detected in a broad band survey of stars using COSMOS measurements of UK Schmidt Telescope (UKST) photographs. The identification of the object as a quasar was confirmed by spectroscopic observations made with the Anglo-Australian Telescope (AAT). The quasar's redshift is the second highest so far detected and the highest for a quasar discovered using purely optical techniques. We describe here the search for DHM0054–284 and then suggest that the methods provide an efficient way of finding more high-redshift quasars.
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Shanks, T., Fong, R. & Boyle, B. Discovery of DHM0054–284, a quasar of redshift 3.61. Nature 303, 156–158 (1983). https://doi.org/10.1038/303156a0
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DOI: https://doi.org/10.1038/303156a0
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