Stability of anisotropic stellar filaments

Journal Article · Fri Dec 15 00:00:00 EST 2017 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2017.10.014· OSTI ID:22852417

Bhatti, M. Zaeem-ul-Haq, E-mail: [e-mail]; Yousaf, Z., E-mail: [e-mail] ^[1]

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1. Department of Mathematics, University of the Punjab, Quaid-i-Azam Campus, Lahore, 54590 (Pakistan)

The study of perturbation of self-gravitating celestial cylindrical object have been carried out in this paper. We have designed a framework to construct the collapse equation by formulating the modified field equations with the background of f(R,T) theory as well as dynamical equations from the contracted form of Bianchi identities with anisotropic matter configuration. We have encapsulated the radial perturbations on metric and material variables of the geometry with some known static profile at Newtonian and post-Newtonian regimes. We examined a strong dependence of unstable regions on stiffness parameter which measures the rigidity of the fluid. Also, the static profile and matter variables with f(R,T) dark source terms control the instability of compact cylindrical system.

• OSTI ID: 22852417
• Journal Information: Annals of Physics, Vol. 387; Other Information: © 2017 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-4916
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ANISOTROPY
CYLINDRICAL CONFIGURATION
DESIGN
DISTURBANCES
FIELD EQUATIONS
FILAMENTS
INSTABILITY
RELATIVISTIC RANGE
SOURCE TERMS
STARS