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Galactic AGB stars from the IPHAS survey

Published online by Cambridge University Press:  21 October 2010

N. J. Wright ,
M. J. Barlow ,
R. Greimel ,
J. E. Drew  and
M. Matsuura
N. J. Wright
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138
M. J. Barlow
Affiliation:
University College London, Gower Street, London WC1E 6BT, U.K.
R. Greimel
Affiliation:
Institut für Physik, Karl-Franzen Universität Graz, Universitätsplatz 5, 8010 Graz, Austria
J. E. Drew
Affiliation:
University of Hertfordshire, College Lane, Hatfield, AL10 9AB, U.K.
M. Matsuura
Affiliation:
University College London, Gower Street, London WC1E 6BT, U.K.
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Abstract

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We present a photometric analysis of the properties of asymptotic giant branch stars identified in the INT Photometric H-alpha Survey (IPHAS) of the northern Galactic plane. Follow-up spectroscopy has revealed that the IPHAS (r - Ha) colour is a valuable diagnostic of the photospheric C/O ratio, and may be used to identify hundreds of carbon and S-type stars.

Keywords

stars: AGB and post-AGB - stars: carbon - infrared: stars - techniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 813
Copyright
Copyright © International Astronomical Union 2010

References

Drew, J. E., Greimel, R., Irwin, M. J. et al. 2005, MNRAS, 362, 753CrossRefGoogle Scholar
Keenan, P. C. & Boeshaar, P. C. 1980 ApJS, 43, 379CrossRefGoogle Scholar
Wright, N. J., Greimel, R., Barlow, M. J. et al. 2008, MNRAS, 390, 929CrossRefGoogle Scholar
Wright, N. J., Barlow, M. J., Greimel, R. et al. 2009, MNRAS, in pressGoogle Scholar