A1540-53, an eclipsing X-ray binary pulsator

Details A1540-53, an eclipsing X-ray binary pulsator A1540-53, an eclipsing X-ray binary pulsator

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...216l..11b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 216, Aug. 15, 1977, p. L11-L14.

Astronomy and Astrophysics

Astronomy

35

Eclipsing Binary Stars, Pulsars, X Ray Astronomy, X Ray Stars, Early Stars, Giant Stars, Light Curve, Oso-8, Spectral Energy Distribution

Scientific paper

An eclipsing X-ray binary pulsator consistent with the location of A1540-53 has been observed. The source pulse period was 528.93 + or - 0.10 s. The binary nature is confirmed by a Doppler curve for the pulsation period. The eclipse angle of 30.5 + or - 3 deg and the 4-hour transition to and from eclipse suggest an early-type giant or supergiant primary star.

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