3 papers
gr-qc2020
Universal properties of the near-horizon geometry
Sebastian Murk, Daniel R. Terno
We derive universal properties of the near-horizon geometry of spherically symmetric black holes that follow from the observability of a regular apparent horizon. Only two types of…
gr-qc2018
Black hole evaporation and semiclassical thin shell collapse
Valentina Baccetti, Sebastian Murk, Daniel R. Terno
In case of spherical symmetry, the assumptions of finite-time formation of a trapped region and regularity of its boundary --- the apparent horizon --- are sufficient to identify t…
gr-qc2018
Energy-momentum tensor and metric near the Schwarzschild sphere
Valentina Baccetti, Robert B. Mann, Sebastian Murk +1
Regularity of the horizon radius of a collapsing body constrains a limiting form of a spherically-symmetric energy-momentum tensor near it. Its non-zero limit belongs to one…