Advertisement

Radio Emission of Dwarf Novae

  • A. O. Benz
Part of the Astrophysics and Space Science Library book series (ASSL, volume 156)

Abstract

With the recent detection of radio emission from dwarf novae a new channel of information on these semi-detached binaries has opened. The radiation is variable within days and highly polarized. Most likely it is emitted by some gyromagnetic process, which would allow to estimate the magnetic field. If it is synchrotron emission, the magnetic field strength in the source is of the order of 40 G; if interpreted by the cyclotron maser process the magnetic field is 800 – 1800 G depending on which harmonic of the local gyrofrequency is emitted. The radio emission seems to be limited to the later part of the optically high state of the accretion disk. This suggests an acceleration mechanism connected to the outburst.

Keywords

Radio Emission Radio Source Accretion Disk White Dwarf Synchrotron Emission 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Benz, A.O., Fürst, E., Kiplinger, A.L.: 1983, Nature 302, 45.ADSCrossRefGoogle Scholar
  2. Benz, A.O. and Güdel, M.: 1989, Astron.Astrophys., submitted.Google Scholar
  3. Cordova, F.A., Mason, K.O., Hjellming, R.M.: 1983, Publ. Astron. Soc. Pacific 92, 69.ADSCrossRefGoogle Scholar
  4. Dulk, G.A. and Marsh, K.A.: 1982, Astrophys.J. 259, 350.ADSCrossRefGoogle Scholar
  5. Echevarria, J.: 1987, Astrophys. Space Sci. 130, 103.ADSCrossRefGoogle Scholar
  6. Fürst, E., Benz, A.O., Hirth, W., Kiplinger, A., and Geffert, M.: 1986, Astron.Astrophys. 154, 377.ADSGoogle Scholar
  7. Jameson, R.F., King, A.R., and Sherrington, M.R.: 1981, M.N.R.A.S. 195, 235.ADSGoogle Scholar
  8. Mattei, J.A.:1988, AAVSO observations, private communication.Google Scholar
  9. Sharma, R.R. and Vlahos, L.: 1984, Ap.J. 280, 405.ADSCrossRefGoogle Scholar
  10. Turner, K.C.: 1985, Radio Stars (eds. R.M. Hjellming and D.M. Gibson), D. Reidel Publishing Company, Dordrecht, p. 283.CrossRefGoogle Scholar

Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • A. O. Benz
    • 1
  1. 1.Institute of Astronomy, ETHZurichSwitzerland

Personalised recommendations