• Towards a characterization of fields leading to black hole hair

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      https://www.ias.ac.in/article/fulltext/pram/085/06/1123-1129

    • Keywords

       

      Black hole; No Hair Theorem.

    • Abstract

       

      In the present work, it is shown that an asymptotically flat spherical black hole can have a nontrivial signature of any field, for an exterior observer, if the energy–momentum tensor of the corresponding field is either trace-free or if the trace falls off at least as rapidly as the inverse cube of the radial distance. In the absence of a general `No Hair Theorem', this result can provide a characterization of the fields leading to a black hole hair.

    • Author Affiliations

       

      Narayan Banerjee1 Somasri Sen2

      1. Department of Physical Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur Campus 741 252, India
      2. Department of Physics, Jamia Millia Islamia, Jamia Nagar, New Delhi 110 025, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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