X-ray emission of the pulsar-Be star binary PSR 1259-63

Details X-ray emission of the pulsar-Be star binary PSR 1259-63 X-ray emission of the pulsar-Be star binary PSR 1259-63

Nov 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...435..411k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 435, no. 1, p. 411-415

Astronomy and Astrophysics

Astronomy

24

B Stars, Emission Spectra, Pulsars, Stellar Mass Accretion, Stellar Models, X Ray Astronomy, X Ray Binaries, X Ray Spectra, Astronomical Spectroscopy, Ginga Satellite, Line Spectra, Mathematical Models, Rosat Mission, Spaceborne Astronomy, Stellar Spectra

Scientific paper

X-rays are detected from the pulsar-Be star binary PSR 1259-63 only after apastron passage. We suggest that the X-rays result from accretion onto the pulsar magnetosphere of matter captured from the Be star wind. The capture efficiency changes markedly at this phase, in line with the observations, provided that the wind is slow (approximately sonic) at large distances from the Be star.

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