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Abundances of Disk PNe in M31 and the radial oxygen gradient
Published online by Cambridge University Press: 30 August 2012
Abstract
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We have obtained spectra of 16 PNe in the disk of M31 and determined the abundances of He, N, O, Ne, S and Ar. Here we present the median abundances and compare them with previous M31 PN disk measurements and with PNe in the Milky Way. We also derive the radial oxygen gradient in M31, which is shallower than that in the Milky Way, even accounting for M31's larger disk scale length.
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 7 , Symposium S283: Planetary Nebulae: An Eye to the Future , July 2011 , pp. 416 - 417
- Copyright
- Copyright © International Astronomical Union 2012
References
Henry, R. B. C., Kwitter, K. B., Jaskot, A. E., Balick, B., Morrison, M., & Milingo, J. B.
2010, ApJ, 724, 748
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