Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.301..175k&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 301, Issue 1, pp. 175-178.
Astronomy and Astrophysics
Astronomy
1
Magnetic Fields, Binaries: Close, Stars: Evolution, Stars: Magnetic Fields, Stars: Neutron, Pulsars: General
Scientific paper
We consider the magnetic and spin evolution of the X-ray binary pulsars Her X-1 and 4U 1626-67, assuming that their magnetic fields are of crustal origin. We adopt the standard evolutionary model which implies that the neutron star passes through several phases in a binary system (`isolated pulsar'-propeller-wind accretion-Roche lobe overflow). In the framework of the model under consideration, the strong magnetic fields of relatively old pulsars like Her X-1 and 4U 1626-67 can naturally be understood if, at their birth, they had a sufficiently strong magnetic field, ~3x10^13 G, comparable to the maximal field observed in radio pulsars.
Konenkov Denis
Urpin Vadim
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