Hypersonic collision of a blast wave on a low-mass star

When a neutron star is born as a result of the accretion-induced collapse ( AIC) of a white dwarf, a small but significant fraction of its mass can be simultaneously expelled at a velocity of around 10(4) kms(-1). In this pape r we study the collision between the gas ejected during the AIC of a white dwarf and a 0.3 M. main-sequence star by using numerical simulation techniq ues. We found that, for a plausible combination of the orbital parameters a nd impact energy, the low-mass star is completely destroyed. This scenario can help to explain the origin of isolated millisecond pulsars.