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The magnetic fields of NGC 6946 and NGC 4945

 

作者: JulienneI. Harnett,  

 

期刊: Geophysical & Astrophysical Fluid Dynamics  （Taylor Available online 1990）
卷期: Volume 50, issue 1-3  

页码: 35-37

 

ISSN:0309-1929

 

年代: 1990

 

DOI:10.1080/03091929008219866

 

出版商: Taylor & Francis Group

 

关键词: NGC 6946;NGC 4945;galactic magnetic fields;dynamo theory.

 

数据来源: Taylor

 

摘要:

Observations of the face-on galaxy NGC 6946 are inconsistent with a simple bisymmetric large-scale field structure confined to the galactic plane; the magnetic field must also possess significant three-dimensionality. The edge-on galaxy NGC 4945 has an active nucleus and a radio halo. Linear polarization maxima on each side of the central galactic plane suggest the presence of a strongly ordered poloidal magnetic field there.

 

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