NASA NTRS · 19770017081
A1540-53, an eclipsing X-ray binary pulsator
Abstract
An eclipsing X-ray binary pulsator consistent with the location of A1540-53 was observed. The source pulse period was 528.93 plus or minus 0.10 seconds. The binary nature is confirmed by a Doppler curve for the pulsation period. The eclipse angle of 30.5 deg plus or minus 3 deg and the 4 h transition to and from eclipse suggest an early type, giant or supergiant, primary star.
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Becker, R. H., Swank, J. H., Boldt, E. A., Holt, S. S., Pravdo, S. H., Saba, J. R., Serlemitsos, P. J.. 1977-05-01. A1540-53, an eclipsing X-ray binary pulsator. https://ntrs.nasa.gov/citations/19770017081
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