Journal
ASTROPHYSICS AND SPACE SCIENCE
Volume 331, Issue 1, Pages 281-288Publisher
SPRINGER
DOI: 10.1007/s10509-010-0426-7
Keywords
f(R) theory; Gravitational collapse
Categories
Funding
- Higher Education Commission, Islamabad, Pakistan
Ask authors/readers for more resources
In this paper, we investigate spherically symmetric perfect fluid gravitational collapse in metric f(R) gravity. We take non-static spherically symmetric metric in the interior region and static spherically symmetric metric in the exterior region of a star. The junction conditions between interior and exterior spacetimes are derived. The field equations in f(R) theory are solved using the assumption of constant Ricci scalar. Inserting their solution into junction conditions, the gravitational mass is found. Further, the apparent horizons and their time of formation is discussed. We conclude that the constant scalar curvature term f(R-0) acts as a source of repulsive force and thus slows down the collapse of matter. The comparison with the corresponding results available in general relativity indicates that f(R-0) plays the role of the cosmological constant.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available