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The SAMI Galaxy Survey: Quenching of Star Formation in Clusters I. Transition Galaxies

Owers, Matthew; Hudson, Michael J.; Oman, Kyle A.; Bland-Hawthorn, J.; Brough, Sarah; Bryant, Julia J.; Cortese, L.; Couch, Warrick; Croom, Scott M.; van de Sande, Jesse; Federrath, Christoph; Groves, Brent Allan; Medling, Anne


We use integral-field spectroscopy from the SAMI Galaxy Survey to identify galaxies that show evidence of recent quenching of star formation. The galaxies exhibit strong Balmer absorption in the absence of ongoing star formation in more than 10% of their spectra within the SAMI field of view. These Hd-strong (HDS) galaxies (HDSGs) are rare, making up only similar to 2% (25/1220) of galaxies with stellar mass log(M-*/M-circle dot) > 10. The HDSGs make up a significant fraction of nonpassive...[Show more]

CollectionsANU Research Publications
Date published: 2019-03-04
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/ab0201
Access Rights: Open Access


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