Skip to main content
SpringerLink
Log in

The equivalent width of the Hβ emission line and the evolution of the Hii regions

  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

The synthetic equivalent width (W Hβ) of the line Hβ in emission is obtained for Hii regions opaque to the Lyman photon flux, with embedded OB associations with different initial chemical compositions and initial mass functions. The variation ofW Hβ as a function of the evolution of the ionizing stars is analysed. The observations ofW Hβ for M33, M101, and M51 by Searle (1971) are discussed.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Allen, C. W.: 1973,Astrophysical Quantities (third edition), The Athlone Press, University of London.

  • Baker, J. G. and Menzel, D. H.: 1938,Astrophys. J. 88, 52.

    Google Scholar 

  • Chiosi, C., Nasi, E. and Sreenivasan, S. R.: 1978,Astron. Astrophys. 63, 103.

    Google Scholar 

  • Dottori, H.: 1980,Astrophys. Space Sci. 73, 175.

    Google Scholar 

  • Kahn, F. D.: 1974,Astron. Astrophys. 37, 149.

    Google Scholar 

  • Kurucz, R. L.: 1979,Astrophys. J. Suppl. 40, 1.

    Google Scholar 

  • Ostriker, J. P., Ridistone, D. O. and Thuan, T. X.: 1974,Astrophys. J. 188, L87.

    Google Scholar 

  • Sarazin, C. L.: 1977,Astrophys. J. 211, 772.

    Google Scholar 

  • Searle, L.: 1971,Astrophys. J. 168, 327.

    Google Scholar 

  • Schmidt-Kaler, T.: 1965, in H. H. Voigt (ed.),Landolt-Börnstein New Series, Group IV, Springer-Verlag, Berlin, Vol. 1, p. 301.

    Google Scholar 

  • Shields, G. A. and Searle, L.: 1978,Astrophys. J. 222, 821.

    Google Scholar 

  • Shields, G. A. and Tinsley, B. M.: 1976,Astrophys. J. 203, 66.

    Google Scholar 

  • Stothers, R. and Chin, C.: 1976,Astrophys. J. 204, 472.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Instituto de Fīsica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil

    Horacio A. Dottori

Authors
  1. Horacio A. Dottori
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dottori, H.A. The equivalent width of the Hβ emission line and the evolution of the Hii regions. Astrophys Space Sci 80, 267–280 (1981). https://doi.org/10.1007/BF00652928

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00652928

Keywords

Search

Navigation