Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution?

Xiao Yan Chew, Il Gyeong Choi, Hyuk Jung Kim +1

The Janis-Newman-Winicour (JNW) spacetime possesses a naked singularity, although it represents an exact particle-like solution to the Einstein-Klein-Gordon theory with a massless…