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

Pramana

S Mukherjee2¹  S Sharma3²  S D Maharaj3²  S Karmakar1³ 

[1] Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India$$;Astrophysics and Cosmology Research Unit, School of Mathematical Sciences, University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa$$;Department of Physics, North Bengal University, Darjeeling 734 430, India$$

关键词: Compact stars;    maximum mass;    surface red-shift.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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.

【 授权许可】

Unknown