Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.150...31m&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 150, no. 1, Dec. 1988, p. 31-41.
Astronomy and Astrophysics
Astrophysics
9
Companion Stars, Novae, Pulsars, X Ray Binaries, Astronomical Spectroscopy, Electron Energy, Emission Spectra, Stellar Mass Accretion, Symbiotic Stars
Scientific paper
X-ray spectral data of the source during 1982 - 1987 suggest that the observed low state of the source intensity could have arisen due to additional absorption of the X-ray flux by material surrounding the X-ray source, which could have come from the companion star during a nova outburst. The accretion models can not explain the rapid spin-down of the pulsar. If the spin-down is caused by the nova outburst, it is suggested that period slow down can occur due to mechanical braking of the pulsar generated by the increased moment of inertia.
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