Interstellar Magnetic Fields
- 1 December 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Plasma Science
- Vol. 14 (6) , 740-747
- https://doi.org/10.1109/tps.1986.4316623
Abstract
Methods of investigating interstellar magnetic fields in spiral galaxies are reviewed. Linearly polarized radio continuum emission yields information about strength and structure of the field. Data are available for our Galaxy and several nearby galaxies. The field strengths vary between 3 and 13 , μG; a correlation with the average surface mass density of the galaxies is indicated. The field of M31 is probably concentrated in a ring-like torus, as predicted by the dynamo theory. The field structure of M33, however, appears to be bisymmetric as expected in the primordial theory of field origin. Other candidates for a bisymmetric field structure are M51, M81, M83, NGC 2903, and NGC 6946, but the observations are not yet conclusive. The magnetic field in IC 342 is too complicated to be described in terms of a simple model. The interaction processes between the field and the various components of interstellar gas should be investigated in more detail.Keywords
This publication has 44 references indexed in Scilit:
- A possible relationship between ring magnetism and H I gas in spiral galaxiesThe Astronomical Journal, 1986
- An optical study of the magnetic field in M31The Astrophysical Journal, 1982
- Numerical studies of shocked magnetic gas clouds - IMonthly Notices of the Royal Astronomical Society, 1981
- Carbon and nitrogen abundances in the giant stars of the globular clusters M3 and M13The Astrophysical Journal Supplement Series, 1981
- The Role of Magnetic Fields in the Formation of StarsPublished by Springer Nature ,1981
- Characteristics of the Local Galactic Magnetic Field Determined from Background Polarization SurveysMonthly Notices of the Royal Astronomical Society, 1974
- Dynamical Stability of Stationary-Dynamo Magnetic FieldsThe Astrophysical Journal, 1974
- Application of the Density-Wave Theory to the Spiral Structure of the Milky way System. III. Magnetic Field: Large-Scale Hydromagnetic Shock FormationThe Astrophysical Journal, 1970
- Polarimetric Observations of Spiral GalaxiesPublications of the Astronomical Society of the Pacific, 1967
- The Dynamical State of the Interstellar Gas and FieldThe Astrophysical Journal, 1966