Voids of dark energy

dc.creatorDutta, Sourish
dc.creatorMaor, Irit
dc.date2006-12-05
dc.date2007-11-15
dc.date.accessioned2026-07-07T11:01:29Z
dc.date.available2026-07-07T11:01:29Z
dc.descriptionWe investigate the clustering properties of a dynamical dark energy component. In a cosmic mix of a pressureless fluid and a light scalar field, we follow the linear evolution of spherical matter perturbations. We find that the scalar field tends to form underdensities in response to the gravitationally collapsing matter. We thoroughly investigate these voids for a variety of initial conditions, explain the physics behind their formation and consider possible observational implications. Detection of dark energy voids will clearly rule out the cosmological constant as the main source of the present acceleration.
dc.description9 pages, 13 figures V3: typo in equation (11) corrected
dc.identifierhttps://arxiv.org/abs/gr-qc/0612027
dc.identifierhttp://arxiv.org/abs/gr-qc/0612027
dc.identifierPhys.Rev.D75:063507,2007
dc.identifierdoi:10.1103/PhysRevD.75.063507
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/187964
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.titleVoids of dark energy
dc.typetext

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