Star formation in ultra-faint dwarfs: continuous or single-aged bursts?
Download (860.65 kB)
-
Altmetric Citations
Webster, David; Bland-Hawthorn, Joss; Sutherland, Ralph
Description
We model the chemical evolution of six ultra-faint dwarfs (UFDs): Bootes I, Canes Venatici II, Coma Berenices, Hercules, Leo IV, and Ursa Major I based on their recently determined star formation histories. We show that two single-age bursts cannot explain the observed [α/Fe] versus [Fe/H] distribution in these galaxies and that some selfenrichment is required within the first burst. An alternative scenario is modeled, in which star formation is continuous except for short interruptions...[Show more]
Collections | ANU Research Publications |
---|---|
Date published: | 2015-01-30 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/13524 |
Source: | The Astrophysical Journal Letters |
DOI: | 10.1088/2041-8205/799/2/L21 |
Download
File | Description | Size | Format | Image |
---|---|---|---|---|
Webster D et al Star formation in ultra-faint dwarfs 2015.pdf | 860.65 kB | Adobe PDF |
Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.
Updated: 17 November 2022/ Responsible Officer: University Librarian/ Page Contact: Library Systems & Web Coordinator