Now showing items 1-2 of 2

  • Do globular clusters possess Dark Matter halos? A case study in NGC 2419 

    Ibata, Rodrigo; Nipoti, Carlo; Sollima, Antonio; Bellazzini, Michele; Chapman, Scott; Dalessandro, Emanuele (2012-10-29)
    We use recently published measurements of the kinematics, surface brightness and stellar mass-to-light ratio of the globular cluster NGC 2419 to examine the possibility that this Galactic halo satellite is embedded in a ...
  • Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics 

    Ibata, Rodrigo; Sollima, Antonio; Nipoti, Carlo; Bellazzini, Michele; Chapman, Scott; Dalessandro, Emanuele (2011-10-18)
    We present an analysis of the globular cluster NGC 2419, using a polytropic model in Modified Newtonian Dynamics (MOND) to reproduce recently published high quality data of the structure and kinematics of the system. We ...