Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-07-04
Mon.Not.Roy.Astron.Soc. 336 (2002) 957
Astronomy and Astrophysics
Astrophysics
5pages. To appear in MNRAS
Scientific paper
10.1046/j.1365-8711.2002.05839.x
We consider the spin evolution of highly magnetized neutron stars in a hypercritical inflow just after their birth in supernovae. Presence of a strong magnetic field could deform the star and if the symmetry axis of the field is misaligned with that of stellar rotation, the star will be an emitter of gravitational wave. Here we investigate the possibility of gravitational radiation from such a star when there is a hypercritical inflow onto it. The stellar configuration is slightly deformed away from spherical by the intense magnetic field; the rotational angular frequency of the star is determined by the balance between the accretion torque and the magnetic dipole radiation. An estimation of the characteristic amplitude of the gravitational radiation from such systems is given. (abridged abstract)
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