Robustness of particle creation in the formation of a compact object

Abstract Hawking predicted that the formation of a black hole by gravitational collapse causes quantum particle creation and spectrum particles is almost thermal. This phenomenon called radiation. Recently, it has been may drastically change from radiation to strong double burst if suddenly stops just before event horizon. In contrast with radiation, be so can observational interest even for collapsing objects astrophysical mass scales. However, through studies idealized models in which spherical hollow shell begins collapse, but shrinking eventually settles down static “star”. Therefore, one might guess could particular model. this paper, we study due object whose interior filled matter. model, obtain similar results those case implies robust property sudden braking collapse.