https://doi.org/10.1140/epjc/s10052-018-6304-0
Regular Article - Theoretical Physics
Vaidya spacetime in Brans–Dicke gravity’s rainbow
1
Department of Mathematics, Asutosh College, Kolkata, 700 026, India
2
Department of Mathematics, Techno India Salt Lake, Sector-V, Kolkata, 700 091, India
* e-mail: prudra.math@gmail.com
Received:
9
July
2018
Accepted:
1
October
2018
Published online:
15
October
2018
In this note we study an energy dependent deformation of a time dependent geometry in the background of Brans–Dicke gravity theory. The study is performed using the gravity’s rainbow formalism. We compute the field equations in Brans–Dicke gravity’s rainbow using Vaidya metric which is a time dependent geometry. We study a star collapsing under such conditions. Our prime objective is to determine the nature of singularity formed as a result of gravitational collapse and its strength. The idea is to test the validity of the cosmic censorship hypothesis for our model. We have also studied the effect of such a deformation on the thermalization process. In this regard we have calculated the important thermodynamical quantities such as thermalization temperature, Helmholtz free energy, specific heat and analyzed the behavior of such quantities.
© The Author(s), 2018
