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Constraining the Magnetic Field of the Smith High-velocity Cloud Using Faraday Rotation

Betti, S. K.; Hill, Alex S.; Mao, S. A.; Gaensler, B. M.; Lockman, Felix J.; McClure-Griffiths, Naomi; Benjamin, Robert A.


The Smith Cloud is a high-velocity cloud with an orbit suggesting it has made at least one passage through the Milky Way disk. A magnetic field found around this cloud has been thought to provide extra stability as it passes through the Galactic halo. We use the Karl G. Jansky Very Large Array to measure Faraday rotation measures (RMs) toward 1105 extragalactic background point sources behind and next to the Smith Cloud to constrain the detailed geometry and strength of its magnetic field. The...[Show more]

CollectionsANU Research Publications
Date published: 2019-02-01
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aaf886


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