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The Magnetic Field of the Large Magellanic Cloud Revealed Through Faraday Rotation
journal contribution
posted on 2023-05-16, 16:45 authored by Gaensler, BM, Haverkorn, M, Staveley-Smith, L, John DickeyJohn Dickey, McClure-Griffiths, NM, Dickel, JR, Wolleben, MWe have measured the Faraday rotation toward a large sample of polarized radio sources behind the Large Magellanic Cloud (LMC) to determine the structure of this galaxy's magnetic field. The magnetic field of the LMC consists of a coherent axisymmetric spiral of field strength ∼1 microgauss. Strong fluctuations in the magnetic field are also seen on small (<0.5 parsec) and large (∼100 parsecs) scales. The large bursts of recent star formation and supernova activity in the LMC argue against standard dynamo theory, adding to the growing evidence for rapid field amplification in galaxies.
History
Publication title
ScienceVolume
307Issue
5715Pagination
1610-1612ISSN
0036-8075Department/School
School of Natural SciencesPublisher
Amer Assoc Advancement SciencePlace of publication
Washington, DC, USARepository Status
- Restricted