Non-singular bouncing General Relativistic Hydrodynamics cosmological models

被引：0
|
作者：
A. Y. Shaikh
A. S. Shaikh
K. S. Wankhade
机构：
[1] Indira Gandhi Mahavidyalaya,Department of Mathematics
[2] Poona College of Arts,Department of Mathematics
[3] Science and Commerce,Department of Mathematics
[4] Y.C. Science College,undefined
来源：
Astrophysics and Space Science | 2021年 / 366卷
关键词：
FRW metric; General relativistic hydrodynamics; General relativity;
D O I：
暂无
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学科分类号：
摘要：
We have studied Friedmann–Robertson–Walker (FRW) cosmological models within the presence of General Relativistic Hydrodynamics (GRH) in General Relativity. Exact solutions of the field equations are deduced by considering the special form of the average scale factor considered by Abdussattar and Prajapati (Astrophys. Space Sci. 331:657, 2011), constraining the deceleration parameter and a special form of deceleration parameter by Singh and Debnath (Int. J. Theor. Phys. 48:351, 2009). The value of the deceleration is always negative which represents an inflationary accelerating model of the universe. The cosmic jerk parameter is positive, throughout the entire life of the universe which ensures an accelerated expansion. The Phantom, Chaplygin gas, and Tachyon fields are discussed. The scalar field values of tachyon and phantom increase with time, while the scalar potential values of tachyon and phantom decrease with time.
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