Supercritical disk accretion onto magnetized neutron stars

Astronomy and Astrophysics – Astronomy

Scientific paper

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Magnetic Stars, Neutron Stars, Stellar Evolution, Stellar Mass Accretion, Supercritical Flow, Binary Stars, Dipole Moments, Earth Magnetosphere, Magnetic Moments, Stellar Atmospheres, Stellar Luminosity

Scientific paper

The interaction between the accretion stream and the magnetosphere of a neutron star (NS) in the mode of supercritical disk accretion is discussed. The maximum rate of accretion onto a magnetized NS is found. The maximum energy release is determined. The evolution of the period of a neutron star in the mode of supercritical accretion is investigated and it is shown that, regardless of the initial period, the NS arrives at the equilibrium accretion state in a time of less than 10,000 years if mu 30 is equal or greater than unity.

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