Speaker
Description
A pivotal question in black hole physics is whether the No-hair theorem is a property of gravity or General Relativity. Associated questions are: Do modified gravity theories allow rotating black hole solutions besides Kerr? If so, what type of modified gravity theories support it, and how are they distinct from the Kerr solution in general relativity? We address some of these questions by explicitly constructing multiple slow-rotating black hole solutions in $f(R)$ gravity up to the second order in the rotational parameter. In this presentation, we demonstrate analytically that a number of vacuum solutions satisfy the field equations up to the second order in the rotational parameter. Consequently, our findings imply that the no-hair theorem for modified gravity theories must be expanded to incorporate the coupling constants from the higher-derivative terms. Our results are unique since they are obtained without conformal transformation.
| seminxavier@iitb.ac.in | |
| Affiliation | Indian Institute of Technology Bombay |
