Hostname: page-component-76fb5796d-r6qrq Total loading time: 0 Render date: 2024-04-26T23:09:23.218Z Has data issue: false hasContentIssue false
  • English
  • Français

Abundances of Heavy Elements in the Magellanic Clouds

Published online by Cambridge University Press:  19 July 2016

Stephen C. Russell ,
Michael S. Bessell  and
Michael A. Dopita
Stephen C. Russell
Affiliation:
Mount Stromlo and Siding Spring Observatories Private Bag PO Woden ACT 2611 Australia
Michael S. Bessell
Affiliation:
Mount Stromlo and Siding Spring Observatories Private Bag PO Woden ACT 2611 Australia
Michael A. Dopita
Affiliation:
Mount Stromlo and Siding Spring Observatories Private Bag PO Woden ACT 2611 Australia

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

This paper provides the first reliable determination of the iron abundance of the Magellanic Clouds. There is clear evidence for carbon and nitrogen depletion, with respect to iron, in the Clouds which can be explained by the relative youth of the Clouds compared to our own Galaxy. Oxygen depletion relative to iron is also in evidence and it is suggested here that this is due to preferential loss of ejecta from high mass stars. Finally, our discovery of an extremely low abundance star in the SMC, coupled with the identification of a similar star by Spite et al. (1987), calls in to question whether or not the SMC is indeed a well mixed system as previously assumed.

Type
VI. Chemical Composition of Stars
Information
Symposium - International Astronomical Union , Volume 132: The Impact of Veryhigh S/N Spectroscopy on Stellar Physics , 1988 , pp. 545 - 550
Copyright
Copyright © Kluwer 1988 

References

Azzopardi, M. and Vigneau, J. 1975 Astr. Astrophys. Suppl, 22, 285.Google Scholar
Clegg, R.E.S., Lambert, D.L. and Tomkin, J. 1981 Astrophys. J., 250, 262.Google Scholar
Dopita, M.A. 1985, in ‘Birth and Evolution of Massive Stars and Stellar Groups’, ed. by Boland, W. and van Woerden, H., p. 269.Google Scholar
Dopita, M.A. 1987, in ‘The Magellanic System’, ed. by Dopita, M. A., Princeton U.P., in preparation.Google Scholar
Dopita, M.A., Mathewson, D.S. and Ford, V.L. 1985 Astrophys. J., 297, 599.Google Scholar
Foy, R. 1981 Astr. Astrophys., 103, 135.Google Scholar
Harris, H.C. 1981 Astr. J., 86, 1192.Google Scholar
Harris, H.C. 1983 Astr. J., 88, 507.Google Scholar
Kurucz, R.L. 1979 Astrophys. J., 40, 1.Google Scholar
Larson, R. 1986 Mon. Not R. Astr. Soc., 218, 409.Google Scholar
Matteucci, F. 1986 Publ. Astr. Soc. Pac., 98, 173.Google Scholar
Nissen, P.E., Edvardsson, B. and Gustafsson, B. 1985 ‘ESO Workshop on Production and Distribution of C,N,O Elements’, Danziger, I. J., Matteucci, F. and Kj, K. (eds.) (ESO Publication), p. 131.Google Scholar
Nomoto, K., Thielemann, F.-K. and Yokoi, K. 1984 Astrophys. J., 286, 644.Google Scholar
Pagel, B.E.J., Edmunds, M.G., Fosbury, R.A.E. and Webster, B.L. 1978, Mon. Not. R. Astr. Soc., 184, 569.Google Scholar
Peimbert, M. 1987, in ‘Star Forming Regions’, IAU Symposium No. 115, Peimbert, M. and Jugaku, J. (eds.) (Dordrecht: Reidel), p. 111.CrossRefGoogle Scholar
Pel, J.W., van Genderen, A.M. and Lub, J. 1981 Astr. Astrophys., 99, L1.Google Scholar
Przybylski, A. 1968 Mon. Not. R. Astr. Soc., 139, 313.CrossRefGoogle Scholar
Przybylski, A. 1971 Mon. Not. R. Astr. Soc., 152, 197.Google Scholar
Przybylski, A. 1972 Mon. Not. R. Astr. Soc., 159, 155.CrossRefGoogle Scholar
Russell, S.C., Bessell, M.S. and Dopita, M. A. 1987, Proc. Astr. Soc. Aust. in press.Google Scholar
Smith, H.A. 1980 Astr. J., 85, 848.Google Scholar
Sneden, C., Lambert, D.L. and Whitaker, R.W. 1979 Astrophys. J., 234, 964.Google Scholar
Spite, M., Cayrel, R., Francois, P., Richtler, T. and Spite, F. 1987, preprint.Google Scholar
Spite, M. and Spite, F. 1978 Astr. Astrophys., 67, 23.Google Scholar
Thévenin, F. and Foy, R. 1986 Astr. Astrophys., 155, 145.Google Scholar
Thielemann, F.-K. and Arnett, W.D. 1985, in ‘Nucleosynthesis, Challenges and New Developments’, Arnett, W. D. and Truran, J. W. (eds.) (University of Chicago Press), p. 151.Google Scholar
Twarog, B.A. and Wheeler, J.C. 1982 Astrophys. J., 261, 636.Google Scholar
van Genderen, , van Driel, W. and Greidanus, H. 1985 Astr. Astrophys., 155, 72.Google Scholar
Wolf, B. 1972 Astr. Astrophys., 20, 275.Google Scholar
Wolf, B. 1973 Astr. Astrophys., 28, 335.Google Scholar