Eur. Phys. J. Plus (2020) 135: 279
https://doi.org/10.1140/epjp/s13360-020-00283-1

Regular Article

The zero mass limit of Kerr and Kerr-(anti) de Sitter space-times: revisited

Mimar Sinan Güzel Sanatlar Üniversitesi, Istanbul, Turkey

^* e-mail: hortacsu@itu.edu.tr

Received: 31 January 2020
Accepted: 12 February 2020
Published online: 2 March 2020

Abstract

We continue studying the zero mass limit of the Kerr-(Anti) de Sitter space-times by investigating the possibility of special values of the frequencies to have polynomial solutions for the radial wave equation and compute the reflection coefficients at the origin for waves coming from the infinity for the AdS and from the cosmological horizon in the dS cases.