Janis–Newman–Winicour and Wyman Solutions are the Same

K. S. Virbhadra
1997 International Journal of Modern Physics A  
We show that the well-known most general static and spherically symmetric exact solution to the Einstein-massless scalar equations given by Wyman is the same as one found by Janis, Newman and Winicour several years ago. We obtain the energy associated with this spacetime and find that the total energy for the case of the purely scalar field is zero.
doi:10.1142/s0217751x97002577 fatcat:5kndkhksx5a3biy6zra5kvcbte