The Maximum Accreted Mass of Recycled Pulsars

The maximum mass of neutron stars (NSs) is great importance for constraining equations state NSs and understanding the gap between stellar-mass black holes. in X-ray binaries would increase by accreting material from their companions (known as recycling process), uncertainties accretion process give challenge to study NS at birth. {In this work, we investigate accreted with considering effect spin evolution process. By exploring a series binary calculations, obtain final given birth transfer efficiency. Our results show that can accrete relatively more systems donor masses range $1.8\sim 2.4M_\odot$, when remnant WD $\sim 0.25-0.30M_\odot$, positively correlated initial mass. For $1.4M_\odot$ moderate efficiency 0.3, could be $0.27M_\odot$. used estimate minimum massive observations.