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arXiv · 0908.3194

Galactic AGB stars from the IPHAS survey

N. J. Wright·M. J. Barlow·R. Greimel·J. E. Drew·M. Matsuura
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Abstract

The INT Photometric H-Alpha Survey (IPHAS) is particular effective in tracing asymptotic giant branch (AGB) stars across the Galactic disk due to its use of broad-band r' and i' filters, and the clear separation of the dwarf and giant branches in the colour-colour diagram. Here we discuss some results from our studies of the Galactic AGB population that has been revealed by IPHAS. This includes a photometric study, our spectroscopic follow-up campaign, and the photometric technique that allows us to separate O-rich, S-type and carbon stars across the entire Galactic disk based on their IPHAS photometry alone. We also discuss the potential impact of this technique on our understanding of the dredge-up process in AGB stars, Galactic chemical evolution, and the structure and properties of the Galactic disk.

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N. J. Wright, M. J. Barlow, R. Greimel, J. E. Drew, M. Matsuura. 2009-12-18. Galactic AGB stars from the IPHAS survey. https://doi.org/10.1017/s1743921310011919

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