H 0139-68 - High-speed optical photometry of an AM-Herculis type binary system

Details H 0139-68 - High-speed optical photometry of an AM-Herculis type binary system H 0139-68 - High-speed optical photometry of an AM-Herculis type binary system

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.204..463p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 204, Aug. 1983, p. 463-470.

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14

Astronomical Photometry, Binary Stars, X Ray Sources, Light Curve, Variability

Scientific paper

The paper reports high-speed optical photometry of the source H 0139-68 obtained on the AAT, at time resolutions of 1 and 2 s, in order to search for evidence of short time-scale periodicities or flickering. Transient periodic pulsations, on time-scales from 5 to 500 s, are present in the data, but no evidence is found for persistent periodic optical pulsations on time-scales less than the primary period. The high-speed data has been combined with other lower time resolution data obtained over 9 months to derive the period of the binary system as 113.638 + or - 0.002 min, by identification of an accurately repeating light-curve signature.

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