Abstract
The magnetic torque contributed by field-threading disk takes on a significant role in the total torque exerted on the magnetic neutron stars in X-ray binaries. In previous works, the toroidal field generated by rotational shear is estimated from the Faraday induction law. It is re-evaluated in this paper with the electrodynamical boundary conditions across the surface of the disk in an axisymmetric case. The dependence of the resistivity of disk plasma on radius is also estimated based on the standard disk theory. A more realistic expression of the disk torque is then derived. The applications to several disk-accreted X-ray pulsars are briefly discussed.
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Aly, J.J.: 1986, in: N. Kylafis, J. Papamastorakis and J. Ventura (eds.),Plasma Penetration into Magnetospheres, Proc. of the Mediterranean School on Plasma Astrophysics, Crete University Press, p. 125.
Anzer, U. and Börner, G.: 1980,Astron. Astrophys. 83, 133.
Anzer, U. and Börner, G.: 1983,Astron. Astrophys. 122, 73.
Campbell, C.G.: 1987,Monthly Not. Roy. Astr. Soc. 229, 405.
Davidson, K. and Ostriker, J.P.: 1973,Astrophys. J. 179, 585.
Elsner, R.F. and Lamb, F.K.: 1977,Astrophys. J. 215, 897.
Fryxell, B.A. and Taam, R.E.: 1988,Astrophys. J. 335, 862.
Ghosh, P. and Lamb, F.K.: 1979a,Astrophys. J. 232, 259.
Ghosh, P. and Lamb, F.K.: 1979b,Astrophys. J. 234, 296.
Ichimaru, S.: 1978,Astrophys. J. 224, 198.
Kaburaki, O.: 1986,Monthly Not. Roy. Astr. Soc. 220, 321.
Kaburaki, O.: 1987,Monthly Not. Roy. Astr. Soc. 229, 165.
Lamb, F.K.: 1989, in: H. Ogelman and E.P.J. van den Heuvel (eds.),Timing Neutron Stars, Kluwer Academic Publishers, p. 649.
Makishima, K., Mihara, T., Nagase, E. and Murakami, T.: 1992, in: Y. Tanaka and K. Koyama (eds.),Frontiers of X-Ray Astronomy, Universal Academic Press, Nagoya, p. 203.
Matsuda, T., Inoue, M. and Sawada, K.: 1987,Monthly Not. Roy. Astr. Soc. 226, 785.
Matsuda, T., Sekino, N., Sawada, K., Shima, E., Livio, M., Anzer, U. and Börner, G.: 1991,Monthly Not. Roy. Astr. Soc. 248, 301.
Nagase, F.: 1989,Publ. Astron. Soc. Japan 41, 1.
Scharlemann, E.: 1978,Astrophys. J. 219, 617.
Shakura, N.I. and Sunyaev, R.A.: 1973,Astron. Astrophys. 24, 337.
Spitzer, L.: 1962,Physics of Fully Ionized Gases, Interscience, New York.
Spruit, H.C. and Taam, R.E.: 1990,Astron. Astrophys. 229, 475.
Spruit, H.C. and Taam, R.E.: 1993,Astrophys. J. 402, 593.
Taam, R.E. and Fryxell, B.A.: 1988,Astrophys. J. 327, L73.
Tanaka, Y.: 1986, in: D. Mihalas and K.H. Winkler (eds.),Radiation Hydrodynamics in Stars and Compact Objects, Springer, Berlin, p. 198.
Voges, W., Pietsch, W., Reppin, C.et al.: 1982,Astrophys. J. 263, 803.
Wang, Y.-M.: 1987,Astron. Astrophys. 183, 257.
White, N.E., Swank, J.H. and Holt, S.S.: 1983,Astrophys. J. 270, 711.
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Project supported by the National Nature Science Foundation of China and the funds from the State Education Commission for the training of Ph.D.'s
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Li, X., Wang, Z. Disk accretion onto magnetic neutron stars. Astrophys Space Sci 225, 47–55 (1995). https://doi.org/10.1007/BF00657842
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DOI: https://doi.org/10.1007/BF00657842