期刊
EUROPEAN PHYSICAL JOURNAL C
卷 80, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-020-7738-8
关键词
-
资金
- Ministerio de Ciencia, Innovacion y Universidades, Spain [PGC2018-096038-B-100]
- Junta de Castilla y Leon, Spain [SA083P17]
- Vicerrectoria de Investigacion y Extension de la Universidad Industrial de Santander
- COLCIENCIAS, Departamento Administrativo de Ciencia, TecnologTecnologia e e Innovacion [8863]
In this work we present the Karmarkar condition in terms of the structure scalars obtained from the orthogonal decomposition of the Riemann tensor. This new expression becomes an algebraic relation among the physical variables, and not a differential equation between the metric coefficients. By using the Karmarkar scalar condition we implement a method to obtain all possible embedding class I static spherical solutions, provided the energy density profile is given. We also analyse the dynamic adiabatic case and show the incompatibility of the Karmarkar condition with several commonly assumed simplifications to the study of gravitational collapse. Finally, we consider the dissipative dynamic Karmarkar collapse and find a new solution family.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据