Why weakly non-linear effects are small in a zero-pressure cosmology

Why weakly non-linear effects are small in a zero-pressure cosmology
复制标题

为什么弱非线性效应在零压力宇宙学中很小

DOI:
10.1093/mnras/203.2.345
复制
发表时间:
1983
影响因子:
4.8
通讯作者:
E. Vishniac
E. Vishniac
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
E. Vishniac

文献摘要

被引文献

相似文献

我们提出了一个计算的一阶非线性之间的相互作用的密度微扰的膨胀,牛顿宇宙学。我们证明,如果功率福尔斯在小波数下下降不太陡,并且在大于所讨论尺度的所有尺度下都小于1,则这些项总是可以忽略不计的。
We present a calculation of the first-order non-linear interactions between density perturbations in an expanding, Newtonian cosmology. We show that these terms are always negligible if the power falls off less steeply thank4at small wavenumber, and ifis less than one at all scales larger than the scale in question.