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On the Nature of Ultra-faint Dwarf Galaxy Candidates. II. The Case of Cetus II

Conn, Blair; Jerjen, Helmut; Kim, Dongwon; Schirmer, M.

Description

We obtained deep Gemini GMOS-S g, r photometry of the ultra-faint dwarf galaxy candidate Cetus II with the aim of providing stronger constraints on its size, luminosity, and stellar population. Cetus II is an important object in the size-luminosity plane, as it occupies the transition zone between dwarf galaxies and star clusters. All known objects smaller than Cetus II (r h ∼ 20 pc) are reported to be star clusters, while most larger objects are likely dwarf galaxies. We found a prominent...[Show more]

CollectionsANU Research Publications
Date published: 2018-04-16
Type: Journal article
URI: http://hdl.handle.net/1885/230743
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aab61c
Access Rights: Open Access

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