INVESTIGADORES
BELLINI Mauricio
artículos
Título:
Exponential collapse with variable time scale driven by a scalar field
Autor/es:
JAIME MENDOZA HERNÁNDEZ; MAURICIO BELLINI; CLAUDIA MORENO
Revista:
PHYSICS OF THE DARK UNIVERSE
Editorial:
Elsevier Sciences
Referencias:
Lugar: Amsterdam; Año: 2019 vol. 26 p. 100395 - 100395
Resumen:
We study the dynamic collapse driven by a scalar field, when a relativistic observer falls co-moving with the collapse and cross the horizon of a Schwarzschild black-hole (BH), at $t=t_0$. During the collapse the scale of time is considered as variable. Back-reaction effects and gravitational waves produced during the exponential collapse are studied. We demonstrate that back-reaction effects act as the source of gravitational waves emitted during the collapse, and wavelengths of gravitational waves (GW) are in the range: $lambda ll r_sequiv {e^{-2h_0t_0}over 2 h_0}$, that is, smaller than the Schwarzschild radius. We demonstrate that during all the collapse the global topology of the space-time remains hyperbolic when the observer cross the horizon.
rds']