A fitting formula for the non‐linear evolution of the bispectrum
A fitting formula for the non‐linear evolution of the bispectrum
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DOI：
10.1046/j.1365-8711.2001.04281.x
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发表时间：
2000-09
影响因子：
4.8
通讯作者：
R. Scoccimarro;H. Couchman
中科院分区：
文献类型：
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作者：
R. Scoccimarro;H. Couchman
ABSTRA C T我们提出了一个拟合公式的冷暗物质（CDM）模型中的双谱的非线性演化，从高分辨率数值模拟的测量。该公式插值之间的扰动和高度非线性制度，并概括了以前的结果为无标度的初始条件。
ABSTRA C T We present a fitting formula for the non-linear evolution of the bispectrum in cold dark matter (CDM) models, obtained from measurements in high-resolution numerical simulations. The formula interpolates between the perturbative and highly non-linear regimes, and generalizes previous results obtained for scale-free initial conditions.