Skip to main content
SpringerLink
Log in

On the structure of the ‘red’ globular cluster NGC 1806 in the large magellanic cloud

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

Abstract

A structural study of the old globular cluster NGC 1806 in the LMC has been carried out by star counts onB- andV-ESO 3.6 m telescope plates with three different limiting magnitude levels. The star density distribution was obtained directly from the surface strip count function with the Plummer formalism and the generalized Schuster law according to Lohmann. This yields beside the central density the structural parametern and the characteristic length parameterR 0 for each individual colour and magnitude level.

The results show that the blue stellar content of NGC 1806 — the horizontal branch stars — is more concentrated towards the cluster center than the red giant and subgiant objects. Also such a dynamical mass segregation is observed for the red giants compared with the subgiants.

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

  • Chandrasekhar, S.: 1942,Principles of Stellar Dynamics, University of Chicago Press.

  • Geyer, E. H. and Richtler, T.: 1981,Proc. IAU Colloq. 68.

  • Geyer, E. H., Hopp, U., Kiehl, M., and Witzigmann, S.: 1979,Astron. Astrophys. 77, 61.

    Google Scholar 

  • King, I.: 1962,Astron. J. 67, 471.

    Google Scholar 

  • Lohmann, W.: 1964,Z. Astrophys. 60, 43.

    Google Scholar 

  • Lohmann, W.: 1973,Astrophys. Space Sci. 24, 531.

    Google Scholar 

  • von Zeipel, H.: 1913,Kungl. Svenska Vet. Akad. Handlingar 51, No. 5.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Observatorium Hoher List, Sternwarte der Universität Bonn, Daun, F.R.G.

    Edward H. Geyer

  2. Institut für Astronomie und Astrophysik, Technische Universität, Berlin, F.R.G.

    Ulrich Hopp

Authors
  1. Edward H. Geyer
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Ulrich Hopp
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Based on observations collected at the European Southern Observatory, La Silla, Chile.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Geyer, E.H., Hopp, U. On the structure of the ‘red’ globular cluster NGC 1806 in the large magellanic cloud. Astrophys Space Sci 84, 133–141 (1982). https://doi.org/10.1007/BF00713631

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00713631

Keywords

Search

Navigation