Radiation Processes in Strong Magnetic Fields

  • W. Nagel
Conference paper


Since the discovery of cyclotron lines in the spectrum of the X-ray pulsar Her X-1 [1] much effort has gone into theoretical work on radiation processes and radiation transport in hot (~ 108 K) and strongly magnetized (~ 108 Vsm−2) plasma (see Mészáros [2] for a review). Apart from its astrophysical relevance for pulsars, and possibly γ-ray bursts, this problem also offers a unique opportunity of learning about fundamental physics: the interaction of light and matter. I have been studying this problem for quite a number of years now, but only recently did I find a consistent and promising way to attack it—using quantum field theoretical methods. Let me try to convince you that radiation processes in magnetic fields are a challenging research project—a project which is just at its beginning, and a lot of interesting exercises in quantum electrodynamics are still in store. But before I come to these fundamental aspects let me talk about the astrophysical background of the problem.


Velocity Fluctuation Radiation Process Soft Photon Kubo Formula Cyclotron Radiation 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    J. Trümper, W. Pietsch, C. Reppin, W. Voges, R. Staubert, E. Kendziorra: Astrophys. J. (Letters) 219, L105 (1978)CrossRefADSGoogle Scholar
  2. 2.
    P. Mészáros: Space Science Reviews 38, 325 (1984)CrossRefGoogle Scholar
  3. 3.
    W. Nagel: Astrophys. J. 251, 288 (1981)CrossRefADSGoogle Scholar
  4. 4.
    P. Mészáros, W. Nagel: Astrophys. J. 298, 147 and 299, 138 (1985)Google Scholar
  5. 5.
    J.G. Kirk, D.B. Melrose, J.G. Peters: Proc. Astron. Soc. Australia 5, 478 (1984)ADSGoogle Scholar
  6. 6.
    J.G. Kirk: Astron. Astrophys. 158, 305 (1986)ADSGoogle Scholar
  7. 7.
    J.G. Kirk, W. Nagel, M. Storey: Astron. Astrophys. 169, 259 (1986)ADSGoogle Scholar
  8. 8.
    W. Nagel: Astrophys. J. 236, 904 (1980)CrossRefADSGoogle Scholar
  9. 9.
    W. Nagel, J. Ventura: Astron. Astrophys. 118, 66 (1983)MATHADSGoogle Scholar
  10. 10.
    V. Weisskopf, E. Wigner: Zeits. f. Physik 63, 54 and 65, 18 (1930)CrossRefADSGoogle Scholar
  11. 11.
    D.B. Melrose, J.G. Kirk: Astron. Astrophys. 156, 268 (1986)ADSGoogle Scholar
  12. 12.
    J. M. Ziman: Elements of Advanced Quantum Theory (Cambridge University Press, Cambridge 1969)MATHGoogle Scholar
  13. 13.
    W. Nagel: J. itPhys. A (submitted)Google Scholar
  14. 14.
    K. Chou, Z. Su, B. Hao, L. Yu: Physics Reports 118, 1 (1985)CrossRefADSMathSciNetGoogle Scholar
  15. 15.
    J. Ventura: Phys. Rev. D 19, 1684 (1979)CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • W. Nagel
    • 1
  1. 1.Institut für AstrophysikMax-Planck-Institut für Physik und AstrophysikGarchingFed.Rep.of Germany

Personalised recommendations