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| Paper: |
AGB Stars in WLM |
| Volume: |
445, Why Galaxies Care about AGB Stars II: Shining Examples and Common Inhabitants |
| Page: |
547 |
| Authors: |
Tatton, B.; Cioni, M.; Irwin, M. |
| Abstract: |
We investigate the star-formation history and metallicity of the
Local Group irregular dwarf galaxy WLM using wide-field
JHK near-infrared imaging, spanning a region of approximately 1 sq. degree, obtained with WFCAM on UKIRT. JHK photometry
clearly reveals the tip of the red giant branch, allowing a new
estimate of the distance, and allows ready identification of C-type
and M-type AGB stars. The C/M ratio is used to produce a surface
map of the metallicity distribution which is compared to previous
studies. Multi-wavelength spectral energy distributions (SEDs)
are constructed for some AGB stars. |
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