A Search for Variations in the Flux of the Quasi-stellar Source CTA 102

Details A Search for Variations in the Flux of the Quasi-stellar Source CTA 102 A Search for Variations in the Flux of the Quasi-stellar Source CTA 102

May 1966

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1966natur.210..611n&link_type=abstract

Nature, Volume 210, Issue 5036, pp. 611 (1966).

Physics

2

Scientific paper

THE source CTA 102 has evoked considerable interest following Sholomitsky's1 announcement that the flux at 32.5 cm varied 25 per cent, with a period of about 100 days. Caswell and Wills2, however, could find no evidence for variations at 1.7 m in their observations made during the same period. The determination by Schmidt3 of a red shift for CTA 102 Δλ/λ = 1.037, placing the object at a distance of about 3,000 Mpc, contradicts Sholomitsky's estimate of ~ 2 Mpc, based on angular size and light travel time. Maltby and Moffet4 have since examined results of measurements made by the California Institute of Technology at 31.4 cm, and for the period 1959.7-1961.7 found no significant variation, and concluded that Sholomitsky's result is probably in error.

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