Stellar filaments in self-interacting Brans-Dicke gravity

被引：8

作者：

Sharif, M. ^{[1
]}

Manzoor, Rubab ^{[1
,2
]}

机构：

[1] Univ Punjab, Dept Math, Quaid e Azam Campus, Lahore 54590, Pakistan

[2] Univ Management & Technol, Dept Math, Johar Town Campus, Lahore 54782, Pakistan

来源：

EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 05期

关键词：

FRAGMENTATION; OSCILLATIONS; COSMOLOGY; STABILITY; UNIVERSE; MODELS;

D O I：

10.1140/epjc/s10052-016-4113-x

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

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.

引用

页码：1 / 8

页数：8

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