Search for optical pulsations from Cen X-3

Details Search for optical pulsations from Cen X-3 Search for optical pulsations from Cen X-3

Jul 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.250..308l&link_type=abstract

Nature, Volume 250, Issue 5464, pp. 308-309 (1974).

Physics

4

Scientific paper

THE optical system recently identified1 with the X-ray source Cen X-3 is an obvious candidate for high frequency optical studies because it provides the possibility of observing optical effects related to the 4.842 s X-ray pulsations2. Observations of this object were made at Cerro Tololo using an S-20 photomultiplier with no filter and making 1-ms integrations on to magnetic tape. The data were analysed by Fourier techniques similar to those used in the HZ Her study3. No clear harmonic activity emerged, and the average upper limits of the optical pulsations for three sets of data were found to be 0.031%, 0.11%, and 0.14% (Table 1).

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