Hawking flux in the interior geometry of the collapsing star – Gala Premiilor Participarii Publice
Site Index

Hawking flux in the interior geometry of the collapsing star

January 31, 2022 / Acrobații civice extraordinare

The evaporation of the collapsing star can be equivalently described as a negative energy flux of radiation travelling radially inwards towards the center of the star. Here, we are interested in the evolution of the star during its collapse.

 

Thus we include the backreaction of the negative energy Hawking flux in the interior geometry of the collapsing star and solve the full 4-dimensional Einstein and hydrodynamical equations numerically.

 

We find that Hawking radiation emitted just before the star passes through its Schwarzschild radius slows down the collapse of the star and substantially reduces its mass thus the star bounces before reaching the horizon.