搜索结果: 1-5 共查到“星系与宇宙学 expansion”相关记录5条 . 查询时间(0.062 秒)
The linear expansion hyperspherical universe
large scale structure of universe bolometric flux luminosity distance quasars galaxies redshift space redshift periodicity
2011/9/25
From Karlsson’s formula and the polar effect, we realize that the half periodic parameter of redshift is 0.206, in theory, we finally explain why the great wall is at redshift Z=0.079 in redshift spac...
We work out an effective theory of accelerated expansion to describe general phenomena of inflation and acceleration (dark energy) in the Universe. Our aim is to determine from theoretical grounds, in...
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...
Light propagation and the average expansion rate in near-FRW universes
Light propagation average expansion rate universes
2011/9/29
We consider universes which are close to Friedmann-Robertson-Walker in the sense that metric perturbations, their time derivatives and first spatial derivatives are small, but second spatial derivativ...
Expansion Velocities of Planetary Nebulae with [WC] Central Stars
Planetary Nebulae Central Stars
2009/6/15
Expansion Velocities of Planetary Nebulae with [WC] Central Stars。