INTRINSIC KICKS AT BIRTH ARE REQUIRED TO EXPLAIN THE OBSERVED PROPERTIES OF SINGLE AND BINARY NEUTRON STARS

摘要

The single assumption that neutron stars receive a kick velocity at their formation explains a large variety of observations, ranging from observed properties of individual binary radio pulsars and Be/X-ray binaries to the observed birth rates and dynamical properties of the populations of low-mass X-ray binaries and recycled radio pulsars. The rejection of this one assumption by Iben & Tutukov compels them to introduce a considerable number of ad hoc hypotheses, each explaining a only small part of the observational results. We conclude that the choice of the single powerful assumption that neutron stars receive a kick velocity at their formation is highly preferable.