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Metallicity gradients and gas flows in galaxy pairs

Kewley, Lisa; Rupke, D S N; Zahid, H J; Geller, Margaret J; Barton, Elizabeth J

Description

We present the first systematic investigation into the metallicity gradients in galaxy close pairs. We determine the metallicity gradients for eight galaxies in close pairs using H II region metallicities obtained with high signalto- noise multi-slit observations with the Keck LRIS Spectrograph. We show that the metallicity gradients in close pairs are significantly shallower than gradients in isolated spiral galaxies such as the Milky Way, M83, and M101. These observations provide the first...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/79576
Source: Astrophysical Journal Letters
DOI: 10.1088/2041-8205/721/1/L48

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