Reports

Optical Pulse of a Periodic Radio Star

Science  26 Apr 1968:
Vol. 160, Issue 3826, pp. 415-416
DOI: 10.1126/science.160.3826.415

Abstract

The pulsating radio star reported by Hewish et al. (1) has been studied in the blue region of the optical spectrum and found to have a pulse amplitude less than 10 percent of the photon count expected for 18th magnitude. No upper limit to a sinusoidal oscillation less than or equal to a complete modulation can be set.

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