Intergalactic magnetic fields and the periphery of spiral galaxies

Details Intergalactic magnetic fields and the periphery of spiral galaxies Intergalactic magnetic fields and the periphery of spiral galaxies

Jan 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...253...89b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 253, no. 1, Jan. 1992, p. 89-91.

Astronomy and Astrophysics

Astrophysics

2

Interstellar Magnetic Fields, Spiral Galaxies, Ellipticity, Equations Of Motion, Isophotes, Lines Of Force

Scientific paper

The present consideration of the effect of intergalactic magnetic fields on the peripheral shape of a spiral galaxy notes that the magnetic field contained in the galactic plane generates an elliptical shape in the outer regions; the most external isophote is more eccentric than the inner isophotes. While it is difficult to identify this shape in actual galaxies, the intergalactic magnetic field cannot be ignored when the peripheries of galaxies are studied, and may be invoked in order to interpret anomalous features observed in some spirals.

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