Critical collapse in K-essence models

Abstract We study gravitational collapse in K-essence model with shift symmetry. For these models, we have the formation of two types of horizons, event and sonic. For the particular case K (X ) = X + βX 2 we found three different regimes. In the weak field regime the scalar field disperses to infin...

Full description

Bibliographic Details
Main Authors: Radouane Gannouji, Yolbeiker Rodríguez Baez
Format: Article
Language:English
Published: SpringerOpen 2020-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2020)132