Constraining the cosmological model with deep, wide-field surveys of the Universe.

当前和未来对宇宙的星系调查将跨越数千平方度，深度极大。从这样的调查中提取最多的宇宙学信息将要求我们仔细考虑广泛的物理效应和观测挑战。例如光锥效应的处理、星系样本的演化、向弯曲天空几何的过渡和球面上正交基函数的使用、物质场的非线性演化和偏置。在本文中，我们将在4MOST和LSST的制备中探讨这些效应。我们还将利用暗能量调查和基洛度调查的数据，并通过新的统计改进宇宙学模型的约束

Current and future galaxy surveys of the cosmos will span many thousands of square degrees and over great depths. Extracting the most cosmological information from such surveys will require us to carefully account for a wide range of physical effects and observational challenges. Such as dealing with the light-cone effect, the evolution of the galaxy sample, the transition to curved sky geometry and the use of orthogonal basis functions on the sphere, nonlinear evolution of the matter fields and the bias. In this thesis we will explore these effects in preparation for 4MOST and LSST. We will also look to make use of the Dark Energy Survey and Kilo Degree Survey data and improve constraints on the cosmological model through novel statsitics