Dynamical Transition from a Naked Singularity to a Black Hole

Understand

We show that a Reissner-Nordstr\"{o}m (RN) black hole can be formed by dropping a charged thin dust shell onto a RN naked singularity.

• This is in contrast to the fact that a RN naked singularity is prohibited from forming by dropping a charged thin dust shell onto a RN black hole.
• This implies the strong tendency of the RN singularity to be covered by a horizon in favour of cosmic censorship.
• We show that an extreme RN black hole can also be formed from a RN naked singularity by the same process in a finite advanced time.