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MHD Turbulence in an Accretion Disk

  • John F. Hawley (a1) and Steven A. Balbus (a1)

Abstract

A long-standing problem in the theory of astrophysical accretion disks has been to determine the nature of the stress that transports orbital angular momentum outward. The discovery of a local MHD instability is strong evidence that transport occurs through turbulent Maxwell and Reynolds stresses. Using numerical simulations, we have demonstrated that a weak seed magnetic field in an accretion disk shear flow is unstable and leads to sustained MHD turbulence at dynamically important levels.

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Balbus, S. A., & Hawley, J. F., 1991, ApJ, 376, 214
Balbus, S. A., & Hawley, J. F. 1992a, ApJ, 392, 662
Balbus, S. A., & Hawley, J. F. 1992b, ApJ, 400, 610
Blaes, O. M., & Balbus, S. A., 1994, ApJ, 421, 163
Chandrasekhar, S., 1960, Proc. Nat. Acad. Sci., 46, 53
Chandrasekhar, S., 1961, Hydrodynamic and Hydromagnetic Stability (New York:Oxford)
Donnelly, R. J., & Ozima, M., 1960, Phys. Rev. Lett., 4, 497
Evans, C. R., & Hawley, J. F., 1988, ApJ, 332, 659
Galeev, A. A., Rosner, R., & Vaiana, G. S., 1979, ApJ, 229, 318
Goldreich, P., & Lynden-Bell, D. 1965, MNRAS, 130, 125
Goodman, J., & Xu, G., 1994, ApJ, 432, 213
Hawley, J. F., & Balbus, S. A., 1991, ApJ, 376, 223
Hawley, J. F., & Balbus, S. A., 1992, ApJ, 400, 595
Hawley, J. F., Gammie, C. F., & Balbus, S. A., 1995, ApJ, 440, 742
Hawley, J. F., & Stone, J. M., 1995, comp. Phys. Comm., in press
Hill, G. W., 1878, Am. J. Math., 1, 5
Meneguzzi, M., Frisch, U., & Pouquet, A., 1981, Phys. Rev. Lett., 47, 1060
Moffat, H. K., 1978, Magnetic Field Generation in Electrically Conducting Fluids (Cambridge Univ. Press)
Sakimoto, P. J., & Coroniti, F. V., 1989, ApJ, 342, 49
Shakura, N. I., & Sunyaev, R. A., 1973, A&A, 24, 337
Stone, J. M., Hawley, J. F., Evans, C. R., & Norman, M.L. 1992, ApJ, 388, 415
Stone, J. M., & Norman, M. L., 1992, ApJ Supp., 80, 819
Toomre, A., 1981, in The Structure and Evolution of Normal Galaxies, ed. Fall, S. M. & Lynden-Bell, D. (Cambridge Univ. Press), 111
Velikhov, E. P., 1959, Soviet Phys. JETP, 36, 995
Wisdom, J., & Tremaine, S., 1988, AJ, 95, 925

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MHD Turbulence in an Accretion Disk

  • John F. Hawley (a1) and Steven A. Balbus (a1)

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