Instability analysis of a cylindrical stellar object in brans–dicke gravity.

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dc.contributor.authorRubab Manzoor
dc.date.accessioned2018-10-15T10:36:50Z
dc.date.available2018-10-15T10:36:50Z
dc.date.issued2016
dc.description.abstractThis paper investigates instability ranges of a cylindrically symmetric collapsing cosmic filamentary structure in Brans-Dicke theory of gravity. For this purpose, we use perturbation approach in the modified field equations as well as dynamical equations and construct a collapse equation. The collapse equation with adiabatic index (Γ) is used to explore the instability ranges of both isotropic as well as anisotropic fluid in Newtonian and post-Newtonian approximations. It turns out that the instability ranges depend on the dynamical variables of collapsing filaments. We conclude that the system always remains unstable for 0 < Γ < 1 while Γ > 1 provides instability only for the special case.en_US
dc.identifier.citationSharif, M., & Manzoor, R. (2016). Instability analysis of a cylindrical stellar object in brans–dicke gravity. Journal of Experimental and Theoretical Physics, 149(5), 849-858. (Rubab Manzoor (Mathematics /SSC), JCR LISTED (IF:0:953))en_US
dc.identifier.urihttps://escholar.umt.edu.pk/handle/123456789/3243
dc.language.isoenen_US
dc.publisherJournal of Experimental and Theoretical Physics, Springer Linken_US
dc.subjectMathematicsen_US
dc.subjectBrans-Dicke theory; Instability; Newtonian and post-Newtonian regimesen_US
dc.titleInstability analysis of a cylindrical stellar object in brans–dicke gravity.en_US
dc.typeArticleen_US
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