lRON OPACITY AND THE PULSAR OF SN l987A

摘要

Neutron stars formed in Type II supernovae are likely to be initially obscured by late-time fallback. Although much of the late-time fallback is quickly accreted via neutrino cooling, some material remains on the neutron star, forming an atmosphere that slowly accretes through photon emission. In this paper, we derive structure equations of the fallback atmosphere and present results of one-dimensional simulations of that fallback. The atmosphere remaining after neutrino cooling (L_v) becomes unimportant (Lv ≤ L_edd.e-,the Compton Eddington limit) is only a fraction of the total mass accreted (