The European Physical Journal C | |
Stellar filaments in self-interacting Brans–Dicke gravity | |
M. Sharif1  Rubab Manzoor2  | |
[1] Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan;Department of Mathematics, University of the Punjab, Quaid-e-Azam Campus, 54590, Lahore, Pakistan;Department of Mathematics, University of Management and Technology, Johar Town Campus, 54782, Lahore, Pakistan; | |
关键词: Scalar Field; Filamentary Structure; Radial Oscillation; Polytropic Index; Finite Radius; | |
DOI : 10.1140/epjc/s10052-016-4113-x | |
来源: Springer | |
【 摘 要 】
This paper is devoted to the study of the cylindrically symmetric stellar filaments in self-interacting Brans–Dicke gravity. For this purpose, we construct polytropic filamentary models through a generalized Lane–Emden equation in the Newtonian regime. The resulting models depend upon the values of the cosmological constant (due to the scalar field) along with the polytropic index and represent a generalization of the corresponding models in general relativity. We also investigate the fragmentation of the filaments by exploring the radial oscillations through a stability analysis. This stability criterion depends only upon the adiabatic index.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202112179232091ZK.pdf | 999KB | download |