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  • 1
    Electronic Resource
    Electronic Resource
    On the structure of the ‘red’ globular cluster NGC 1806 in the large magellanic cloud (1982)
    Springer
    Astrophysics and space science 84 (1982), S. 133-141 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: 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.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00713631
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