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    • Dark matter halo cores in hierarchical clustering theories

      Kandaswamy Subramanian

      Large Scale Structure and Gravitational Clustering Volume 53 Issue 6 December 1999 pp 1001-1011

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      https://www.ias.ac.in/article/fulltext/pram/053/06/1001-1011

    • Keywords

       

      Cosmology; dark matter; large-scale structure of Universe; galaxies; formation; halos; clusters

    • Abstract

       

      In hierarchical clustering theories, smaller masses generally collapse earlier than larger masses and so are denser on the average. The core of a small mass halo could be dense enough to resist disruption and survive undigested, when it gets incorporated into a bigger object, and determine the halo structure in the inner regions. We examine in this talk the possible consequences of this idea in determining the structure of dark halo cores, by considering, both simple scaling arguments, and a novel fluid approach to self-similar collapse solutions for the dark matter phase space density.

    • Author Affiliations

       

      Kandaswamy Subramanian1

      1. National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Pune University Campus, Ganeshkhind, Pune - 411 007, India

    • Dates

       
      Published
      December 1999

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