B-type supergiants in M 31

Bibcode
2003IAUS..212..245T
Trundle, Carrie; Dufton, Philip L.; Lennon, Daniel J.; Smartt, Stephen J.; Urbaneja, Miguel A.
Bibliographical reference

A Massive Star Odyssey: From Main Sequence to Supernova, Proceedings of IAU Symposium #212, held 24-28 June 2001 in Lanzarote, Canary island, Spain. Edited by Karel van der Hucht, Artemio Herrero, and Esteban, César. San Francisco: Astronomical Society of the Pacific, 2003., p.245

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0
2003
Number of authors
5
IAC number of authors
1
Citations
0
Refereed citations
0
Description
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
Non-refereed

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