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Magnetic Fields in Irregular Galaxies

Published online by Cambridge University Press:  30 March 2016

Krzysztof T. Chyży
Krzysztof T. Chyży*
Affiliation:
Astronomical Observatory, ul Orla 171, PL30-244 Kraków, Poland

Abstract

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Radio data of large irregular galaxies reveal some extended synchrotron emission with a substantial degree of polarization. In the case of NGC 4449 strong galaxy-scale regular magnetic fields were found, in spite of the lack of ordered rotation required for the conventional dynamo action. The rigidly rotating large irregular NGC 55 shows vertical polarized spurs connected with a network of ionized gas filaments. Small dwarf irregulars show only isolated polarized spots.

Type
II. Joint Discussions
Information
Highlights of Astronomy , Volume 12: Highlights of Astronomy. As presented at the XXIVth General Assembly of the IAU, 2000 , 2002 , pp. 721 - 722
Copyright
Copyright © Astronomical Society of Pacific 2002

References

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