Skip to main content Accessibility help

Magnetic White Dwarfs in Binary Systems

  • D.T. Wickramasinghe (a1)


The cataclysmic variables are close binary systems consisting of a late type star and a collapsed star, usually a white dwarf, undergoing mass exchange. According to the standard model, the late type star (the secondary) fills its Roche lobe and material escaping from the inner Lagrangian point is transferred to the primary by means of a mass transfer stream and an accretion disc. The spectroscopic and photometric properties of most cataclysmic variables can be understood in terms of radiation from the various components of such a system, with the accretion disc usually dominating in the optical region (see Warner (1976) for a review). However, recently a new class of cataclysmic variables has been discovered with distinctive optical properties that are inexplicable in terms of the standard model. These systems known as the AM Herculis type variables have provided the first direct evidence for the presence of strong magnetic fields in the white dwarfs of some cataclysmic variables. We present here a review of some of the important properties of these variables with emphasis on the unique system VV Puppis which has provided the first unequivocal evidence for high harmonic cyclotron radiation from white dwarfs.



Hide All
Agrawal, P.C., Rao, A.R., Rieglev, G.R., Picles, A.J., and Visvanathan, N.W., IAUC 3649 (1982).
Bekefei, G., Radiation Processes in Plasmas (New York, Wiley 1966).
Bailey, J., Hough, J.H., Axon, D.J., Gatley, I., Lee, T.J., Szkody, P., Stokes, G., and Berriman, G., Mon. Not. R. Astron Soc, 199, 801 (1982).
Bergh, R.A., and Duthie, J.G., Astrophys. J., 211, 859 (1977).
Bierman, P., Kuhr, H., Liebert, J.,Stockman, H., Strittmatter, P.A., and Tapia, S., IAUC, 3680 (1982).
Boley, F., Johns, M., Maher, S., IAUC 3324 (1982).
Chaumugam, G., and Dulk, G.A., Astrophys. J., 244, 569 (1981).
Chaumugam, G., and Wagner, R., Astrophys. J. Letts, 213, L13 (1977).
Chaumugam, G., and Wagner, R., Astrophys. J., 222, 641 (1978).
Drummond, W.E., and Rosenbluth, M.N., Phys. Fluids, 6, 276 (1963).
Fabian, A.C., Pringle, J.E., and Rees, , M.J., , Mon. Not. R. Astron. Soc, 175, 43 (1976).
Fabianno, G., Hartmann, L., Raymond, J., Steiner, J., Branduardi-Raymont, G., and Matilsky, T., Astrophys. J., 243, 911 (1981).
King, A.R., and Lasota, J.P., Mon. Not. R. Astron. Soc, 188, 653 (1979).
King, A.R., and Lasota, J.P., Mon. Not. R. Astron. Soc, 191, 721 (1980).
Krzeminsky, W., and Serkowski, K., Astrophys. J. Letts, 216, 645 (1977).
Lamb, D.Q., and Masters, A.R., Astrophys. J. Letts, 234, L117 (1979).
Latham, D., Liebert, J., and Steiner, J., Astrophys. J., 246, 919(1981).
Liebert, J., Stockman, H.S., Astrophys. J., 229, 652 (1979).
Liebert, J., Stockman, H.S., Angel, J.R.P., Woolf, N.J., Hege, K., and Margon, B., Astrophys. J., 225, 201 (1978).
Liebert, J., Stockman, H.S., Williams, R.E., Tapia, S., Green, R.F., Rautenkranz, D., and Ferguson, D.H., Astrophys. J., 256, 594 (1982).
Masters, A.R., Pringle, J.E., Fabian, A.C., and Rees, M.J., Mon. Not. R. Astron. Soc, 178, 501 (1977).
Mason, K., Middleditch, F., Cordova, F., Jensen, K., Reichert, G., Bowyer, S., Murdin, P., and Clark, D., IAUC 3684 (1982).
Meggitt, S.M.A., and Wickramasinghe, D.T., Mon. Not. R. Astron. Soc, 198, 71 (1982).
Raymond, J.C., Black, J.H., Davis, R.J., Dupree, A.K., Gursky, H., Harman, J., and Matlisky, T.A., Astrophys. J., 230, 695 (1979).
Schneider, D.P., and Young, P., Astrophys. J., 238, 946 (1980).
Schneider, D.P., and Young, P., Astrophys. J., 240, 871 (1980).
Stockman, H.S., Astrophys. J. Letts, 218, L57 (1977).
Stockman, H.S., Liebert, J., and Bond, H.E., IAU Coll No 53, (eds van Horn, H., and Weidemann, V.,Univ. of Rochester Press 1979).
Stockman, H.S., Schmidt, G.D., Angel, J.R.P., Liebert, J., Tapia, S., Beaver, E.A., Astrophys. J., 217, 815 (1977).
Stockman, H.S., Foltz, C., Tapia, S., Schmidt, G., and Grandi, G., IAUC 3696 (1982).
Swank, J., Lampton, M., Boldt, E., Holt, S., and Serlemitsos, P., Astrophys. J., 216, L17 (1977).
Tapia, S., Astrophys. J. Letts, 212, L125 (1977a).
Tapia, S., IAUC 3054 (1977b).
Tapia, S., IAUC 3327 (1979).
Tapia, S., IAUC 3683 (1982).
Trubinikov, B.A., Phys. Fluids, 4, 195 (1961).
Warner, B., IAU Symposium No 73 (Eds Eggleton, P., Mitton, S., Whelan, J. 1976).
White, N.E., Astrophys. J., 244, L85 (1981).
Wickraraasinghe, D.T., and Meggitt, S.M.A., Mon. Not. R. Astron. Soc, 198, 975 (1982).
Wickramasinghe, D.T., and Visvanathan, N.W., Mon. Not. R. Astron. Soc, 191, 589 (1980).
Young, P., and Schneider, D.P., Astrophys. J., 230, 502 (1979).

Magnetic White Dwarfs in Binary Systems

  • D.T. Wickramasinghe (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.