  The EUV photoionizing radiation and FUV dissociating radiation from newly
born stars photoevaporate their parental neutral cloud, leading to the
formation of dense clumps that could eventually form additional stars. We study
the effects of including a photodissociating FUV flux in models of the
fragmentation of a photoevaporating, self-gravitating molecular cloud. We
compute 3D simulations of the interaction of an inhomogeneous, neutral,
self-gravitating cloud with external EUV and FUV radiation fields, and
calculate the number of collapsing clumps and their mass. We find that the
presence of an outer photodissociation region has an important effect on the
formation of dense structures due to the expansion of an HII region. In
particular, including a FUV field leads to the earlier formation of a larger
number of dense clumps, which might lead to the formation of more stars.
