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

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7724025b&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Eclipsing Binary Stars, Pulsars, X Ray Fluorescence, X Ray Sources, Doppler Radar, Giant Stars, Supergiant Stars, X Ray Astronomy, X Ray Spectroscopy

Scientific paper

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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