Relativistic cosmological large scale structures at one-loop
نویسندگان
چکیده
منابع مشابه
Quantum Signature of Cosmological Large Scale Structures
We demonstrate that to all large scale cosmological structures where gravitation is the only overall relevant interaction assembling the system (e.g. galaxies), there is associated a characteristic unit of action per particle whose order of magnitude coincides with the Planck action constant h. This result extends the class of physical systems for which quantum coherence can act on macroscopic ...
متن کاملLarge Scale Structures at High RedshiftPaul
The evidence for large-scale structure at high redshifts is reviewed. I conclude that massive Mpc scale galaxy clusters probably exist at z > 2. The 2139?4430 galaxy cluster at redshift 2.38 is discussed as a case study. This remarkable cluster may consist of 10 Ly-emitting galaxies, and as many as 100 other, less active galaxies, selected by a novel near-IR photometric technique. Most of these...
متن کاملLarge-scale Flows as a Cosmological Probe
We review the use of peculiar velocities of galaxies as a probe of cosmological models. We put particular emphasis on comparison of the peculiar velocity and density fields, focussing on the discrepancies between various recent analyses. We discuss the limitations of the commonly used linear bias model, which may lie at the heart of some of the current controversies in the field.
متن کاملCosmological Implications of Large-scale Flows
Cosmological implications of the observed large-scale peculiar velocities are reviewed, alone or combined with redshift surveys and CMB data. The latest version of the POTENT method for reconstructing the underlying three-dimensional velocity and mass-density fields is described. The initial fluctuations and the nature of the dark matter are addressed via statistics such as bulk flow and mass p...
متن کاملRelativistic conservation laws and integral constraints for large cosmological perturbations
For every mapping of a perturbed spacetime onto a background and with any vector field ξ we construct a conserved covariant vector density I(ξ), which is the divergence of a covariant antisymmetric tensor density, a “superpotential”. I(ξ) is linear in the energymomentum tensor perturbations of matter, which may be large; I(ξ) does not contain the second order derivatives of the perturbed metric...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2019
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2019/07/030