标题： 弱透镜剪切响应校正的空间传播 显示英文标题

标题： Spatial Propagation of Weak Lensing Shear Response Corrections

摘要： 本文中我们展示了如何将对剪切测量的响应函数修正（例如，由元检校所需的）传播到宇宙剪切功率谱中。我们研究了2球面像素（也称为HEALpixel'）的修正以及使用简单高斯模拟的前向建模方法。在2球面像素修正方法中，我们发现了一个自由参数，即局部响应矩阵可容忍的条件数：如果该值过大，则可能导致离散噪声功率谱的放大；如果过小，则可能导致面积损失（以及可能的选择偏差）。相比之下，通过前向建模功率谱可以避免这一选择。这同样适用于基于地图的推断方法，这些方法使用经过剪切响应校准的地图。 显示英文摘要

摘要： In this paper we show how response function corrections to shear measurements (e.g. as required by Metacalibration) propagate into cosmic shear power spectra. We investigate a 2-sphere pixel (also known as HEALpixel') correction and a forward-modelling approach using simple Gaussian simulations. In the 2-sphere pixel-correction approach we find a free parameter that is the tolerated condition number of the local response matrices: if this is too large then this can cause an amplification of the shot noise power spectrum, if too small it can lead to a loss of area (and a possible selection bias). In contrast by forward-modelling the power spectrum this choice can be avoided. This also applies to map-based inference methods using shear-response calibrated maps.