Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-13T07:06:52.686Z Has data issue: false hasContentIssue false
  • English
  • Français

Enhancement of Magnetic Fields in High-Gravity Stars Due to an Intrinsic Dynamo Effect

Published online by Cambridge University Press:  19 July 2016

Dieter Engelhardt  and
Irmela Bues
Dieter Engelhardt
Affiliation:
Remeis Sternwarte, D-8600 Bamberg, Federal Republic of Germany
Irmela Bues
Affiliation:
Remeis Sternwarte, D-8600 Bamberg, Federal Republic of Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A model of a local magnetic field within a white dwarf is constructed by the use of quantum statistics. The polarized Fermi, Bose and Maxwell statistics is calculated within a Heisenberg magnetism model by the use of Jones calculus. With a mesoscopic description the quantum mechanical dynamo can be discussed. The result is an efficient excitation mechanism, based on Lorentz time transformations and magnetic interactions. An Ap star as progenitor of a polarized white dwarf may loose its field and can generate a stronger one due to an intrinsic dynamo on a time scale of 107 years.

Type
4. Late-Type and Other Stars
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 177 - 181
Copyright
Copyright © Kluwer 1993 

References

Chanmugam, G.: 1992, Ann. Rev. Astron. Astrophys. 30, 143 CrossRefGoogle Scholar
Engelhardt, D., Bues, I.: 1991, Lecture notes in Physics 401,428 CrossRefGoogle Scholar
Engelhardt, D., Bues, I.: 1992, in press Google Scholar
Grosse, H.:1988, ‘Models in Statistical Physics and Quantum Field Theory’, Springer, Berlin CrossRefGoogle Scholar
Jones, R.C.: 1941, J. Opt. Soc. Am. 31, 488 CrossRefGoogle Scholar
Landau, L.D., Lifschitz, E.M.: 1986, “Quantenelektrodynamik” Google Scholar
Steenbeck, M., Krause, F.: 1969, Astron. Nachr. 291, 49 CrossRefGoogle Scholar