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Numerical Calculations for Accretion Disks in Close Binary Systems

Published online by Cambridge University Press:  12 April 2016

G. Hensler
G. Hensler*
Affiliation:
Universitäts-Sternwarte, Geismarlandstr. 11, D-3400 Göttingen

Abstract

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A numerical method for 3D magnetohydrodynamical investigations of accretion disks in close binary systems is presented, which allows for good spatial resolution of structures (hot spot, accretion column). The gas is treated as individual gas cells (pseudo-particles) whose motion is calculated within a grid consisting of one spherical inner part for 3D MHD and two plane outer parts. Viscous interactions of the gas cells are taken into account by a special treatment connected with the grid geometry.

We present one result of 2D hydrodynamical calculations for a binary applying the following parameters which are representative for Cataclysmic Variables: M1 = 1 Mʘ, r1 = 10-2 Rʘ, M2 = 0.5 Mʘ, p = 0.2 d, M = 10-9 Mʘ y-1.

Column density and radiative flux distributions over the disk are shown and briefly discussed by comparison with the theoretical understanding of these Dwarf Novae drawn from observations.

Type
Part III: Evolutionary Processes in Close Binary Systems
Information
International Astronomical Union Colloquium , Volume 69: Binary and Multiple Stars as Tracers of Stellar Evolution , 1982 , pp. 219 - 230
Copyright
Copyright © Reidel 1982

References

Bath, G.T.: 1975, Monthly Notices Roy. Astron. Soc. 171, 311 CrossRefGoogle Scholar
Bath, G.T., Pringle, J.E.: 1981, Monthly Notices Roy. Astron. Soc. 194, 967 CrossRefGoogle Scholar
Biermann, P.: 1971, Astron. Astrophys. 10, 205 Google Scholar
Crampton, D.: 1980, IAU Symp. No. 88, p. 313 Google Scholar
Delgado, A.J., Thomas, H.-C.: 1981, Astron. Astrophys. 96, 142 Google Scholar
Everson, B.L.: 1981, preprintGoogle Scholar
Flannery, B.P.: 1975, Astrophys. J. 201, 661 CrossRefGoogle Scholar
Haefner, R., Metz, K.: 1981, Astron. Astrophys., in pressGoogle Scholar
Harlow, F.H.: 1964, Methods in Comput. Physics Vol. 3, p. 319 Google Scholar
Hensler, G.: 1981, Proceed. V. Göttingen-Jerusalem-Symp., in pressGoogle Scholar
Hensler, G.: 1981, this colloquium, p. 219.Google Scholar
Hensler, G.: 1981a, Astron. Astrophys., submittedGoogle Scholar
Hensler, G.: 1981b, Astron. Astrophys., submittedGoogle Scholar
Heuvel, E.J.P. van den: 1976, IAU Symp. No. 73, p. 35 Google Scholar
Kippenhahn, R., Weigert, A.: 1967, Z. Astrophys. 65, 251 Google Scholar
Kippenhahn, R., Thomas, H.-C.: 1978, Astron. Astrophys. 63, 265 Google Scholar
Leboeuf, J.N., Tajima, T., Dawson, J.M.: 1979, J. Comput. Physics 31, 379 CrossRefGoogle Scholar
Lightman, A.P.: 1974a, Astrophys. J. 194, 419 CrossRefGoogle Scholar
Lightman, A.P.: 1974b, Astrophys. J. 194, 429 CrossRefGoogle Scholar
Lin, D.N.C., Pringle, J.E.: 1976, IAU Symp. No. 73, p. 237 Google Scholar
Lin, D.N.C., Pringle, J.E.: 1977, in “Novae and Related Stars”, Astrophys. Space Sei. Libr. Vol. 65, ed. Friedjung, M. Reidel, Dordrecht, p. 35 Google Scholar
Lubow, S.H., Shu, F.H.: 1975, Astrophys. J. 198, 383 CrossRefGoogle Scholar
Lucy, L.B.: 1977, Astron. J. 82, 1013 CrossRefGoogle Scholar
Lynden-Bell, D., Pringle, J.E.: 1974, Monthly Notices Roy. Astron. Soc. 168, 603 CrossRefGoogle Scholar
Mayo, S.K., Wickramasinghe, D.T., Whelan, J.A.J.: 1980, Monthly Notices Roy. Astron. Soc. 193, 793 CrossRefGoogle Scholar
Meyer, F., Meyer-Hofmeister, E.: 1981, Astron. Astrophys., in pressGoogle Scholar
Novikov, I., Thome, K.S.: 1973, in “Black Holes”, Les Houches 1972, eds. DeWitt, C. & DeWitt, B.S. Gordon & Breach, New York, p. 343 Google Scholar
Osaki, Y.: 1974, Publ. Astron. Soc. Japan 26, 429 Google Scholar
Pacharintanakul, P., Katz, J.I.: 1980, Astrophys. J. 238, 985 CrossRefGoogle Scholar
Papaloizou, J., Pringle, J.E.: 1977, Monthly Notices Roy. Astron. 181, 441 CrossRefGoogle Scholar
Plavec, M.J.: 1980, IAU Symp. No. 88, p. 1 Google Scholar
Potter, D.: 1973, “Computational Physics”, John Wiley & Sons, London Google Scholar
Prendergast, K.H.: 1960, Astrophys. J. 132, 162 CrossRefGoogle Scholar
Prendergast, K.H., Taam, R.E.: 1974, Astrophys. J. 189, 125 CrossRefGoogle Scholar
Pringle, J.E.: 1976, Monthly Notices Roy. Astron. Soc. 177, 65 CrossRefGoogle Scholar
Shakura, N.I., Sunyaev, R.A.: 1973, Astron. Astrophys. 24, 337 Google Scholar
Shakura, N.I., Sunyaev, R.A.: 1976, Monthly Notices Roy. Astron. Soc. 175, 613 CrossRefGoogle Scholar
Sørensen, S.-A., Matsuda, T., Sakurai, T.: 1975, Astrophys. Space Sci. 33, 465 CrossRefGoogle Scholar
Tayler, R.J.: 1980, Monthly Notices Roy. Astron. Soc. 191, 135 Google Scholar
Vogt, N.: 1979, ESO Messenger 17, 39 Google Scholar
Warner, N.: 1976, IAU Symp. No. 73 p. 85 Google Scholar
Wood, P.R.: 1977, Astrophys. J. 217, 530 CrossRefGoogle Scholar