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Tracing the Milky Way nuclear wind with 21 cm atomic hydrogen emission

Lockman, Felix J.; McClure-Griffiths, Naomi

Description

There is evidence in 21 cm H i emission for voids several kiloparsecs in size centered approximately on the Galactic center, both above and below the Galactic plane. These appear to map the boundaries of the Galactic nuclear wind. An analysis of H i at the tangent points, where the distance to the gas can be estimated with reasonable accuracy, shows a sharp transition at Galactic radii R lesssim 2.4 kpc from the extended neutral gas layer characteristic of much of the Galactic disk, to a thin...[Show more]

CollectionsANU Research Publications
Date published: 2016
Type: Journal article
URI: http://hdl.handle.net/1885/152152
Source: The Astrophysical Journal
DOI: 10.3847/0004-637X/826/2/215
Access Rights: Open Access

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