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B-type supergiants in M 31

Published online by Cambridge University Press:  26 May 2016

Carrie Trundle ,
Philip L. Dufton ,
Daniel J. Lennon ,
Stephen J. Smartt  and
Miguel A. Urbaneja
Carrie Trundle
Affiliation:
Department of Pure and Applied Physics, The Queen's University, Belfast BT7 1NN, Northern Ireland The Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de La Palma, Canary Islands, España
Philip L. Dufton
Affiliation:
Department of Pure and Applied Physics, The Queen's University, Belfast BT7 1NN, Northern Ireland
Daniel J. Lennon
Affiliation:
The Isaac Newton Group of Telescopes, Apartado de Correos 321, E-38700 Santa Cruz de La Palma, Canary Islands, España
Stephen J. Smartt
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK
Miguel A. Urbaneja
Affiliation:
Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38200 La Laguna, Tenerife, España

Abstract

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We present the spatial distribution of chemical species in M 31, as derived from intermediate resolution spectra of seven B-type supergiants, lying within four OB associations, covering a galactocentric distance of 5 – 12 kpc. We do not detect any systematic oxygen gradient across this galactocentric range. We find that the inner regions of M 31 are not, as previously thought, very ‘metal-rich’. Our abundances of C, N, O, Mg, Si, Al, S and Fe in the M 31 supergiants are very similar to those of massive stars in the solar neighbourhood.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 245 - 246
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Blair, W.P., Kirshner, R.P., Chevalier, R.A. 1982, ApJ 254, 50.Google Scholar
Galarza, V.C., Walterbos, R.A.M., Braun, R. 1999, AJ 118, 2775.Google Scholar
McGaugh, S.S. 1991, ApJ 380, 140.Google Scholar
Pagel, B.E.J., Edmunds, M.G., Smith, G. 1980, MNRAS 193, 219.Google Scholar
Pilyugin, L.S. 2001, A&A 369, 594.Google Scholar
Smartt, S.J., Crowther, P.A., Dufton, P.L., et al. 2001, MNRAS 325, 257.Google Scholar
Trundle, C., Dufton, P.L., Lennon, D.J., Smartt, S.J., Urbaneja, M.A. 2002, A&A 395, 519.Google Scholar
Venn, K.A., McCarthy, J.K., Lennon, D.J., et al. 2000, AJ 541, 610.Google Scholar
Zaritsky, D., Kennicutt, R.C., Huchra, J.P. 1994, 420, 872.Google Scholar