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Polarized Radio Emission from M51
Published online by Cambridge University Press: 19 July 2016
Abstract
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The polarized radio continuum emission of M51 is found to be strongest outside the optical spiral arms. The rotation measure varies double-sinusoidally with azimuthal angle which for the first time clearly shows a dominating bisymmetric spiral (BSS) structure of the large-scale magnetic field in M51. The pitch angle of the magnetic spiral is similar to that of the optical spiral arms. The lowest (axisymmetric) dynamo mode is possibly suppressed by interaction with the companion galaxy.
- Type
- 5. The Polarization, Magnetic Field and Velocity Structure of External Spiral Galaxies
- Information
- Symposium - International Astronomical Union , Volume 140: Galactic and Intergalactic Magnetic Fields , 1990 , pp. 211 - 212
- Copyright
- Copyright © Kluwer 1990
References
Scarrott, S.M., Ward-Thompson, D. and Warren-Smith, R.F. (1987) Monthly Notices Roy. Astron. Soc.
224, 299–305.Google Scholar
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