Astronomy and Astrophysics – Astrophysics – High Energy Astrophysical Phenomena
Scientific paper
2011-12-05
Astronomy and Astrophysics
Astrophysics
High Energy Astrophysical Phenomena
27 pages, 6 figures, accepted to New Astronomy
Scientific paper
10.1016/j.newast.2012.01.004
Some modern models of neutron star evolution predict that initially large magnetic fields rapidly decay down to some saturation value $\sim {\rm few}\times 0^{13}$ G and weaker magnetic fields do not decay significantly (Pons). It is difficult to check the predictions of this model for initially highly magnetized objects on the time scale of a few million years. We propose to use Be/X-ray binaries for this purpose. We apply several methods to estimate magnetic fields of neutron stars in these accreting systems using the data obtained by the RXTE satellite (Galache). Only using the most modern approach for estimating the magnetic field strengths of long period NSs as proposed by Shakura we are able to obtain a field distribution compatible with predictions of the theoretical model of field decay of Pons.
Chashkina A.
Popov Sergei B.
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