Mathematics – Logic
Scientific paper
Jul 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.250..127c&link_type=abstract
Nature, Volume 250, Issue 5462, pp. 127-128 (1974).
Mathematics
Logic
1
Scientific paper
IN a recent communication Wampler et al.1 reported the redshifts of the QSO pair 1548 + 115a, b. For the QSO 1548 + 115a the redshift is given as z = 0.4359 and for 1548 + 115b as z = 1.901. Since these QSOs are separated by approximately 5 arc s these authors concluded, primarily on the basis of a statistical argument, that these two objects are at the same cosmological distance and that the redshifts are therefore ``discordant''. In addition these authors noted that the wavelength ratio (1 + z)b / (1 + z)a = 2.02, which is sufficiently close to a factor of two for them to speculate that for such optically associated objects this ``... is either an unfortunate coincidence or a profound mystery''.
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