Phys. Rev. D 72, 123002 (2005) [4 pages]Magnetic field in galaxies, galaxy clusters, and intergalactic spaceReceived 7 October 2005; published 13 December 2005 Magnetic fields of unknown origin appear to permeate the Universe on alllarge scales. We suggest that the winds and cosmic rays, which are producedby the spherical ejecta and jets from supernova explosions, magnetize theinterstellar medium in galaxies, the intracluster medium in galaxy clusters,and the intergalactic space. We show that, if the cosmic rays generate magneticfields in rough energy equipartition with the cosmic rays, the predicted magnetic-fieldstrengths coincide with the ones observed. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.72.123002
DOI:
10.1103/PhysRevD.72.123002
PACS:
98.38.Am, 98.35.Nq, 98.58.Ay, 98.62.En
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