Accretion of radiation and rotating Primordial black holes

Understand

We consider rotating Primordial black holes (PBHs) and study the effect of accretion of radiation in the radiation dominated era.

• The central part of our analysis deals with the role of the angular momentum parameter on the evolution of PBHs.
• We find that both the accretion rate and evaporation rate decrease with increase in angular momentum parameter, but the rate of evaporation decreases more rapidly than the rate of accretion.
• This shows that the evaporation time of PBHs get prolonged with increase in angular momentum parameter.