On tidal disruption of clouds and disk formation near boson stars - Archive ouverte HAL
Article Dans Une Revue Classical and Quantum Gravity Année : 2017

On tidal disruption of clouds and disk formation near boson stars

Résumé

We present two-dimensional general relativistic hydrodynamics simulations of free-falling gas clouds onto rotating boson stars (BS). Those objects consist of a complex scalar field coupled to gravity. BS are interesting as black hole (BH) mimickers. By this, one means that they are very compact objects but without any event horizon. It is then expected that the physics around BS is different than the one around BH. In this paper, we consider two BS configurations and study the trajectories and internal properties of infalling gas clouds, varying their initial positions. We follow the various disruption phases of the cloud until the formation, in some cases, of a gas torus in the inner region of the BS. We then discuss the cloud capture process by BS and the torus formation. We find that the characteristic time for torus formation increases when the initial distance between of the cloud and the BS decreases.
Fichier non déposé

Dates et versions

hal-01645952 , version 1 (06-09-2022)

Identifiants

Citer

Z. Meliani, F. Casse, P. Grandclément, E. Gourgoulhon, F. Dauvergne. On tidal disruption of clouds and disk formation near boson stars. Classical and Quantum Gravity, 2017, 34 (22), pp.225003. ⟨10.1088/1361-6382/aa8fb5⟩. ⟨hal-01645952⟩
136 Consultations
0 Téléchargements

Altmetric

Partager

More