Low-mass X-ray binary as the progenitor of PSR J1713 + 0747

Abstract

We have calculated the evolution of low-mass X-ray binaries that lead to the formation of the binary radio pulsars, like PSR J1713+0747. We showed that the mass transfer is most likely to be nonconservative, due to unstable disk accretion, to account for the mass of PSR J1713 + 0747, which is close to its initial value. We assumed that part of the lost material from the binary may form a circumbinary disk, and found that it can significantly influence the mass-transfer processes. We briefly discuss the implications of the circumbinary disks on the evolution of low-mass X-ray binaries and the formation of low-mass binary pulsars. © 2006. Astronomical Society of Japan.