论文标题
Fisher Galaxy调查代码($ \ texttt {faro} $)
The Fisher gAlaxy suRvey cOde ($\texttt{FARO}$)
论文作者
论文摘要
Fisher Galaxy调查代码($ \ texttt {faro} $)是一种新的公共Python代码,可计算用于Galaxy Surveys可观察到的Fisher矩阵。所考虑的可观察到的是线性多晶格3D星系功率谱,弱透镜的线性收敛功率谱以及用于星系分布与收敛之间相关性的线性多晶格功率谱。代码允许进行断层扫描和与模型无关的分析,在其中,对于与比例无关的增长,Redshift $ a_a(z)\equivσ_{8}(z)\,b_a(z)$,$ r(z)$ r(z)\ equivσ_ σ_{8}(z)\,σ(z)$和$ e(z)\ equiv h(z)/h_0 $,以及比例$ \ hat {p}(k)$的功能,分别是每个红移和缩放箱中的免费参数。此外,还提供了更改变量的模块,以在所需的任何特定参数集上投射Fisher矩阵。该代码的构建是尽可能快且用户友好的。作为应用程序的示例,我们预测了诸如Desi,Euclid,J-Pas和LSST等未来星系调查的敏感性,并在不同的红移和规模范围内进行了比较。
The Fisher gAlaxy suRvey cOde ($\texttt{FARO}$) is a new public Python code that computes the Fisher matrix for galaxy surveys observables. The observables considered are the linear multitracer 3D galaxy power spectrum, the linear convergence power spectrum for weak lensing, and the linear multitracer power spectrum for the correlation between galaxy distribution and convergence. The code allows for tomographic and model-independent analysis in which, for scale-independent growth, the following functions of redshift $A_a (z) \equiv σ_{8}(z) \, b_a (z)$, $R(z) \equiv σ_{8}(z) \, f(z)$, $L(z) \equiv Ω_{m} \, σ_{8}(z) \, Σ(z)$ and $E(z) \equiv H(z)/H_0$, together with the function of scale $\hat{P}(k)$, are taken as free parameters in each redshift and scale bins respectively. In addition, a module for change of variables is provided to project the Fisher matrix on any particular set of parameters required. The code is built to be as fast as possible and user-friendly. As an application example, we forecast the sensitivity of future galaxy surveys like DESI, Euclid, J-PAS and LSST and compare their performance on different redshift and scale ranges.