The idea
is to made constraints on the potential depths of pentaquarks by
analysing their influence on the mass-radius relationship of neutron
stars. The calculations are made with the Walecka model, an relativistic
mean field, theorie and inserted in the Tolmann-Oppenheimer-Volkoff
equations to get the mass radius relation. The results are compared
with the results of Cabrera et. al. and Zhong et. al..