Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-03-08
Class. Quantum Grav. 27 ( 2010) 075016
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
20 pages, 7 figures; some corrections added
Scientific paper
10.1088/0264-9381/27/7/075016
Gravitational collapse of the Brans-Dicke scalar field with non-zero potential in the presence of matter fluid obeying the barotropic equation of state, $p=w\rho$ is studied. Utilizing the concept of expansion parameter, it is seen that the cosmic censorship conjecture may be violated for $w=-\frac{1}{3}$ and $ w=-\frac{2}{3}$ which correspond to cosmic string and domain wall, respectively. We show that physically, it is the rate of collapse and the presence of Brans-Dicke scalar field that govern the formation of a black hole or a naked singularity as the final fate of dynamical evolution and only for these two cases the singularity can be naked as the collapse end state. Also the weak energy condition is satisfied by the collapsing configuration.
Atazadeh Khedmat
Tavakoli Yaser
Ziaie A. H.
No associations
LandOfFree
Naked Singularity Formation In Brans-Dicke Theory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Naked Singularity Formation In Brans-Dicke Theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Naked Singularity Formation In Brans-Dicke Theory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-454028