An inhomogeneous model universe behaving homogeneously
نویسندگان
چکیده
منابع مشابه
Quantum creation of an Inhomogeneous universe
In this paper we study a class of inhomogeneous cosmological models which is a modified version of what is usually called the Lemâitre-Tolman model. We assume that we have a space with 2-dimensional locally homogeneous spacelike surfaces. In addition we assume they are compact. Classically we investigate both homogeneous and inhomogeneous spacetimes which this model describe. For instance one i...
متن کاملViable Inhomogeneous Model Universe without Dark Energy from Primordial Inflation
A new model of the observed universe, using solutions to the full Einstein equations, is developed from the hypothesis that our observable universe is an underdense bubble, with an internally inhomogeneous fractal bubble distribution of bound matter systems, in a spatially flat bulk universe. It is argued on the basis of primordial inflation and resulting structure formation, that the clocks of...
متن کاملangular magnification measurements consistent with an inhomogeneous critical density Universe ?
The propagation of light through a Universe of (a) isothermal mass spheres amidst (b) a homogeneous matter component, is considered. We demonstrate by an analytical proof that as long as a small light bundle passes through sufficient number of (a) at various impact parameters-a criterion of great importance-its average convergence will in the weak lensing limit exactly compensate the divergence...
متن کاملCosmological Magnetic Fields Limits in an Inhomogeneous Universe
We study the effect of inhomogeneities in the matter distribution of the universe on the Faraday rotation of light from distant QSOs and derive new limits on the cosmological magnetic field. The matter distribution in the Universe is far from being homogeneous and, for the redshifts of interest to rotation measures (RM), it is well described by the observed Ly-α forest. We use a log-normal dist...
متن کاملModels of Universe with an inhomogeneous Big Bang singularity
The existence of stars and galaxies reqires cosmological models with an inhomogeneous matter and radiation distribution. But in these models the initial singularity surface t0(r) is in general homogeneous (independent of r). In this second paper of a series devoted to an inhomogeneous Big Bang singularity, we investigate the cosmic microwave background radiation (CMBR) dipole. A special Tolman-...
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: General Relativity and Gravitation
سال: 2008
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-007-0590-4