Lagrangian theory of structure formation in relativistic cosmology. V. Irrotational fluids

Simple item page
dc.contributor.authorLi YZ
dc.contributor.authorMourier P
dc.contributor.authorBuchert T
dc.contributor.authorWiltshire DL
dc.date.accessioned2018-12-16T22:11:01Z
dc.date.available2018-12-16T22:11:01Z
dc.date.issued2018en
dc.date.updated2018-10-31T19:45:52Z
dc.description.abstract© 2018 American Physical Society. American Physical Society. We extend the general relativistic Lagrangian perturbation theory, recently developed for the formation of cosmic structures in a dust continuum, to the case of model universes containing a single fluid with a single-valued analytic equation of state. Using a coframe-based perturbation approach, we investigate evolution equations for structure formation in pressure-supported irrotational fluids that generate their rest-frame spacetime foliation. We provide master equations to first order for the evolution of the trace and traceless parts of barotropic perturbations that evolve in the perturbed space, where the latter describes the propagation of gravitational waves in the fluid. We illustrate the trace evolution for a linear equation of state and for a model equation of state describing isotropic velocity dispersion, and we discuss differences to the dust matter model, to the Newtonian case, and to standard perturbation approaches.en
dc.identifier.doihttps://doi.org/10.1103/PhysRevD.98.043507
dc.identifier.issn2470-0010
dc.identifier.issn2470-0029
dc.identifier.urihttp://hdl.handle.net/10092/16339
dc.language.isoen
dc.subjectgr-qcen
dc.subjectastro-ph.COen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5101 - Astronomical sciences::510103 - Cosmology and extragalactic astronomyen
dc.subject.anzsrcFields of Research::51 - Physical sciences::5101 - Astronomical sciences::510105 - General relativity and gravitational wavesen
dc.titleLagrangian theory of structure formation in relativistic cosmology. V. Irrotational fluidsen
dc.typeJournal Articleen
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1806.05467v2.pdf
Size:
895.77 KB
Format:
Adobe Portable Document Format
Description:
Submitted version
Download
Collections
Science: Journal Articles