Fuzzball Shadows: Emergent Horizons from Microstructure

Autor: Bert Vercnocke, Fabio Bacchini, Hector Olivares, Jordy Davelaar, Thomas Hertog, Daniel R. Mayerson, Bart Ripperda
Přispěvatelé: Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2021
Předmět:
High Energy Physics - Theory
dimension: 4
geometry
compact
Event horizon
chaos
Astronomy
Physics
Multidisciplinary
General Physics and Astronomy
FOS: Physical sciences
Astrophysics
General Relativity and Quantum Cosmology (gr-qc)
01 natural sciences
General Relativity and Quantum Cosmology
horizon
sphere: fuzzy
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Shadow
black hole
structure
010306 general physics
BLACK-HOLES
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
Science & Technology
010308 nuclear & particles physics
[PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th]
Horizon
Microstructure
Ray
Redshift
Black hole
High Energy Physics - Phenomenology
Scaling limit
High Energy Physics - Theory (hep-th)
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Physical Sciences
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
Astrophysics - High Energy Astrophysical Phenomena
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
geodesic
Zdroj: Physical Review Letters, 127, 16, pp. 1-8
Phys. Rev. Lett.
Physical Review Letters
Physical Review Letters, 127, 1-8
Phys.Rev.Lett.
Phys.Rev.Lett., 2021, 127 (17), pp.171601. ⟨10.1103/PhysRevLett.127.171601⟩
ISSN: 1079-7114
0031-9007
DOI: 10.1103/PhysRevLett.127.171601⟩
Popis: We study the physical properties of four-dimensional, string-theoretical, horizonless "fuzzball" geometries by imaging their shadows. Their microstructure traps light rays straying near the would-be horizon on long-lived, highly redshifted chaotic orbits. In fuzzballs sufficiently near the scaling limit this creates a shadow much like that of a black hole, while avoiding the paradoxes associated with an event horizon. Observations of the shadow size and residual glow can potentially discriminate between fuzzballs away from the scaling limit and alternative models of black compact objects.
Comment: 6 pages, 3 figures
Databáze: OpenAIRE
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