Hawking radiation in Reissner-Nordstr\"{o}m blackhole with a global monopole via Covariant anomalies and Effective action

Abstract

We adopt the covariant anomaly cancellation method as well as the effective action approach to obtain the Hawking radiation from the Reissner-Nordstr\"{o}m blackhole with a global monopole falling in the class of the most general spherically symmetric charged blackhole $(\sqrt{-g}\neq1)$, using only covariant boundary condition at the event horizon.