Zobrazeno 1 - 10
of 2 127
pro vyhledávání: '"A Di Russo"'
We study the radiated energy by a scalar particle moving on a circular orbit (smeared in the extra dimension) in the spacetime of a topological star, extending a previous study [Phys. Rev. D {\bf 110}, 084077 (2024)]. We discuss motion in the presenc
Externí odkaz:
http://arxiv.org/abs/2411.19612
We discuss the dynamics of a (neutral) test particle in Topological Star spacetime undergoing scattering processes by a superposed test radiation field, a situation that in a 4D black hole spacetime is known as relativistic Poynting-Robertson effect,
Externí odkaz:
http://arxiv.org/abs/2407.10868
We consider coupled gravitational and electromagnetic perturbations of a family of five-dimensional Einstein-Maxwell solutions that describes both magnetized black strings and horizonless topological stars. We find that the odd perturbations of this
Externí odkaz:
http://arxiv.org/abs/2406.19330
We study linear massive scalar charged perturbations of Topological Stars in the fuzzball and in the black hole (Black String) regimes. The objects that naturally couple to the electric 3-form field strength of these solutions are charged strings, wo
Externí odkaz:
http://arxiv.org/abs/2405.06566
We study the gravitational tidal response of D1D5, Top Star and (1,0,n) strata horizonless geometries. We find that the tidal interactions in fuzzball geometries, unlike in the case of black holes, exhibits a sequence of resonant peaks associated to
Externí odkaz:
http://arxiv.org/abs/2402.06621
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-24 (2024)
Abstract We consider coupled gravitational and electromagnetic perturbations of a family of five-dimensional Einstein-Maxwell solutions that describes both magnetized black strings and horizonless topological stars. We find that the odd perturbations
Externí odkaz:
https://doaj.org/article/1aa41d87e5fa4bafb97dca6b1beb2220
Autor:
Bianchi, Massimo, Di Russo, Giorgio, Grillo, Alfredo, Morales, Jose Francisco, Sudano, Giuseppe
Topological stars, or top stars for brevity, are smooth horizonless static solutions of Einstein-Maxwell theory in 5-d that reduce to spherically symmetric solutions of Einstein-Maxwell-Dilaton theory in 4-d. We study linear scalar perturbations of t
Externí odkaz:
http://arxiv.org/abs/2305.15105
We perform a detailed study of linear perturbations of the JMaRT family of non-BPS smooth horizonless solutions of type IIB supergravity beyond the near-decoupling limit. In addition to the unstable quasi normal modes (QNMs) responsible for the ergo-
Externí odkaz:
http://arxiv.org/abs/2305.00865
Publikováno v:
Contributions to Entomology, Vol 74, Iss 1, Pp 103-111 (2024)
We describe four new species of the genus Dolichopoda from various areas of Greece, namely D. athosensis sp. nov., D. dirussoi sp. nov., D. karoutsosi sp. nov. and D. kotsabasi sp. nov. New locality records for Greece for the genera Dolichopoda and T
Externí odkaz:
https://doaj.org/article/407cb5d31f76441c86a715690fcb8e1a
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-32 (2024)
Abstract We study linear massive scalar charged perturbations of Topological Stars in the fuzzball and in the black hole (Black String) regimes. The objects that naturally couple to the electric 3-form field strength of these solutions are charged st
Externí odkaz:
https://doaj.org/article/ac2c73504be74dc2acb9ea96b09e05c6