Skip to main content
SpringerLink
Log in

Galactic abundance gradients from ob-type stars in young clusters and associations

  • I. “Norman” Early-Type Stars
  • Conference paper
  • First Online:
The Atmospheres of Early-Type Stars

Part of the book series: Lecture Notes in Physics ((LNP,volume 401))

  • 150 Accesses

Abstract

High-resolution spectra of main sequence B-type stars in young galactic clusters have been analysed using LTE and (where appropriate) non-LTE model atmosphere calculations. A re-analysis of the O II data from 11 clusters indicates that within 2 kpc of the sun there appears to be no obvious abundance gradient with respect to galactocentric distance. However, the cluster Dolidze 25 lying at R g = 13.5 kpc has been found to be oxygen deficient, implying that the abundance gradient may be non-linear. A comparison with studies of H II regions indicates that within the uncertainties the two methods yield consistent abundances. We are currently analysing clusters with 10 kpc ≤ Ry ≤ 12kpc and will shortly be obtaining data on clusters with R g ≤ 16kpc.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Log in via an institution

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  • Bromage, G.E. 1984. Proc. 4th. European IUE meeting, ESA SP-218, 473.

    Google Scholar 

  • Brown, P.J.F., Dufton, P.L., Lennon, D.J., Keenan, F.P. 1986. Mon. Not. R. Astr. Soc., 220, 1003.

    Google Scholar 

  • Fich, M., Silkey, M. 1991. Astrophys. J., 366, 107.

    Google Scholar 

  • Fitzsimmons, A., Brown, P.J.F., Dufton, P.L., Lennon, D.J. 1990. Astr. Astrophys., 232, 437.

    Google Scholar 

  • Lambert, D.L. 1978. Mon. Not. R. astr. Soc., 182, 149.

    Google Scholar 

  • Lennon, D.J., Dufton, P.L., Fitzsimmons, A., Gehren, T., Nissen, P.E. 1990. Astr. Astrophys., 240, 349.

    Google Scholar 

  • Shaver, P.A., McGee, R.X., Newton, L.M., Danks, A.C., Pottasch, S.R. 1982. Mon. Not. R. Astr. Soc., 204, 53.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Pure and Applied Physics, Queens University of Belfast, BT7 1NN, Belfast, UK

    A. Fitzsimmons, P. J. F. Brown, P. L. Dufton & W. R. J. Rolleston

Authors
  1. A. Fitzsimmons
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. J. F. Brown
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. P. L. Dufton
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. W. R. J. Rolleston
    View author publications

    You can also search for this author in PubMed Google Scholar

Editor information

U. Heber C. Simon Jeffery

Rights and permissions

Reprints and permissions

Copyright information

© 1992 Springer-Verlag

About this paper

Cite this paper

Fitzsimmons, A., Brown, P.J.F., Dufton, P.L., Rolleston, W.R.J. (1992). Galactic abundance gradients from ob-type stars in young clusters and associations. In: Heber, U., Jeffery, C.S. (eds) The Atmospheres of Early-Type Stars. Lecture Notes in Physics, vol 401. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-55256-1_275

Download citation

  • DOI: https://doi.org/10.1007/3-540-55256-1_275

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-55256-7

  • Online ISBN: 978-3-540-46997-1

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics

Search

Navigation