搜索结果: 1-13 共查到“运动宇宙学 Cosmological”相关记录13条 . 查询时间(0.078 秒)
Manifestly gauge invariant theory of the nonlinear cosmological perturbations in the leading order of the gradient expansion
nonlinear cosmological perturbation, gauge invariance, non-Gaussianity PACS number(s):98.80.Cq
2011/9/29
In the full nonlinear cosmological perturbation theory in the leading order of the gradient expansion, all the types of the gauge invariant perturbation variables are defined. The metric junction cond...
Cosmological Perturbation Theory With Background Anisotropic Curvature
Cosmological Perturbation Theory Background Anisotropic Curvature
2011/10/18
The theory of cosmological perturbations is extended to spacetimes displaying isotropic expansion but anisotropic curvature. The perturbed Einstein equation and Boltzmann equations for massless and ma...
The dark matter assembly of the Local Group in constrained cosmological simulations of a LambdaCDM universe
galaxies: haloes cosmology: theory methods: N-body simulations
2011/9/26
We make detailed theoretical predictions for the assembly properties of the Local Group (LG) in the standard LambdaCDM cosmological model. We use three cosmological N-body dark matter simulations from...
Michael Turner to direct Kavli Institute for Cosmological Physics（图）
Michael Turner Kavli Institute Cosmological Physics
2010/4/29
The University of Chicago has named Michael S. Turner as director of its Kavli Institute for Cosmological Physics, effective March 29, in an ongoing commitment to probing some of the most puzzling sci...
Probing Cosmological Parameters with H II Galaxies and the new generation telescopes
Cosmological Parameters telescopes H II Galaxies
2009/6/12
Probing Cosmological Parameters with H II Galaxies and the new generation telescopes。
Follow-up Science of the SIRTF GTO Cosmological Survey Program with the GTC
SIRTF GTO Cosmological Survey Program GTC
2009/6/11
Follow-up Science of the SIRTF GTO Cosmological Survey Program with the GTC。
Reionization of the universe and the photoevaporation of cosmological minihalos
cosmological minihalos hotoevaporation Reionization
2009/6/5
Reionization of the universe and the photoevaporation of cosmological minihalos。
Cosmological Models of Universe with Variable Deceleration Parameter in Lyra's Manifold
Cosmology FRW universe Lyra geometry
2010/10/13
FRW models of the universe have been studied in the cosmological theory based on Lyra’s manifold. A new class of exact solutions has been obtained by considering a time dependent displacement field fo...
A Note on Cosmological Parameters and the Topology of the Universe
Cosmological Parameters the Topology of the Universe
2010/10/15
Given the wealth of increasingly accurate cosmological observations, especially the recent results from the WMAP, and the development of methods and strategies in the search for cosmic topology, it is...
On the Non-integrability of a Class of Hamiltonian Cosmological Models
the Non-integrability Hamiltonian Cosmological Models
2010/10/15
The method of Morales and Ramis determines whether a given Hamiltonian system is non-integrable. We apply this method to Friedmann Robertson Walker models with a self-interacting scalar field and cosm...
Phase Space Solutions in Scalar-Tensor Cosmological Models
Phase Space Solutions Scalar-Tensor Cosmological Models
2010/10/15
An analysis of the solutions for the field equations of generalized scalar-tensor theories of gravitation is performed through the study of the geometry of the phase space and the stability of the sol...
Is the Cosmological Particle Production Homogeneous?
a cosmological scenario particle production the gravitational field
2010/10/18
Using a gauge-invariant formalism we find the density contrast equation in a cosmological scenario with particle production at the expenses of the gravitational field (open system cosmology). First, w...
Remarks on Some Vacuum Solutions of Scalar-Tensor Cosmological Models
Vacuum Solutions Scalar-Tensor Cosmological Models
2010/10/21
We present a class of exact vacuum solutions corresponding to de Sitter and warm inflation models in the framework of scalar-tensor cosmologies. We show that in both cases the field equations reduce t...