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The role of pressure anisotropy on the maximum mass of cold compact stars

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Abstract

We study the physical features of a class of exact solutions for cold compact anisotropic stars. The effect of pressure anisotropy on the maximum mass and surface red-shift is analysed in the Vaidya-Tikekar model. It is shown that maximum compactness, red-shift and mass increase in the presence of anisotropic pressures; numerical values are generated which are in agreement with observation.

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Authors and Affiliations

  1. Department of Physics, North Bengal University, Darjeeling, 734 430, India

    S. Karmakar

  2. Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune, 411 007, India

    S. Mukherjee

  3. Astrophysics and Cosmology Research Unit. School of Mathematical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban, 4000, South Africa

    R. Sharma & S. D. Maharaj

Authors
  1. S. Karmakar
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  2. S. Mukherjee
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  3. R. Sharma
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  4. S. D. Maharaj
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Karmakar, S., Mukherjee, S., Sharma, R. et al. The role of pressure anisotropy on the maximum mass of cold compact stars. Pramana - J Phys 68, 881–889 (2007). https://doi.org/10.1007/s12043-007-0088-3

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  • DOI: https://doi.org/10.1007/s12043-007-0088-3

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