DOES THE COALESCENCE OF WHITE-DWARFS PRODUCE MILLISECOND PULSARS IN GLOBULAR-CLUSTERS

Isolated main-sequence stars with initial masses in the range from con gruent-to 1 to 8 or 9 M. will evolve into C + 0 white dwarfs with mass es up to congruent-to 1.1 M., and those main-sequence stars with initi al masses in the range from congruent-to 8 or 9 to 10 or 11 M. may pro duce 0 + Ne(+ Mg) white dwarfs with masses up to less than or similar 1.4 M.. Many such white dwarfs should exist in globular clusters, and pairs of them should coalesce frequently via collisional processes, es pecially if primordial binaries are present. It is quite possible that most of the short-period millisecond pulsars in the pre-core-collapse globular clusters have been produced via mergers of white dwarf pairs with total masses exceeding the Chandrasekhar limit.