|Figure 14: Results of the Monte Carlo simulation of neutron star–white dwarf binary generation and
evolution in 47 Tuc. Each small dot represents a binary system. The circles and error bars are the 10
binary pulsars in 47 Tuc with well measured orbits. Systems in A have evolved through mass transfer
from the white dwarf to the neutron star. Systems in B have not yet evolved through gravitational
radiation to begin RLOF from the white dwarf to the neutron star. Systems in C will not undergo a
common envelope phase. Image reproduced by permission from Rasio et al. , copyright by IOP.