Title: Probing the primordial Universe with MeerKAT and DES Show Chinese title

Title: 用 MeerKAT 和 DES 探测原始宇宙

Abstract: It is usually assumed that we will need to wait until next-generation surveys like Euclid, LSST and SKA, in order to improve on the current best constraints on primordial non-Gaussianity from the Planck experiment. We show that two contemporary surveys, with the SKA precursor MeerKAT and the Dark Energy Survey (DES), can be combined using the multi-tracer technique to deliver an accuracy on measurement of $f_{\rm NL}$ that is up to three times better than Planck. Show Chinese abstract

Abstract: 通常假设我们需要等待下一代调查，如欧几里得（Euclid）、大型综合巡天望远镜（LSST）和平方公里阵列（SKA），才能在原初非高斯性方面超越普朗克实验的当前最佳限制。我们表明，利用SKA前身 MeerKAT 和暗能量调查（DES）这两个当代调查，可以通过多跟踪技术结合，以比普朗克更好的精度测量$f_{\rm NL}$，精度可提高多达三倍。