论文标题
带有X射线星系群集调查的宇宙学？
Cosmology with X-RAY galaxy cluster surveys ?
论文作者
论文摘要
这次演讲回顾了科学动机，潜在的困难以及X射线频段中群集数量计数的宇宙学的最新进展。我们的前瞻性建模方法表明，现在可以克服许多实际和概念上的缺点。我们介绍了XMM-XXL调查的最新结果。下一步是将人工智能技术应用于模拟。这使我们能够绕过不必要的复杂缩放关系形式主义。净收益是显着减少自由参数的数量，并直接访问宇宙参数和真正的物理成分，例如AGN反馈。通过这种方式，我们在没有明确的群集质量计算的情况下实现了集群宇宙学。
This talk reviews the scientific motivations, the potential difficulty and recent advances in cosmology using cluster number-counts in the X-ray band. Our forward modelling approach shows that many of the practical and conceptual shortcomings can now be overcome. We present recent results from the XMM-XXL survey. The next step is to apply artificial intelligence techniques on simulations. This allows us to bypass the unnecessarily complicated scaling relation formalism. The net gain is to significantly reduce the number of free parameters and to provide direct access both to the cosmological parameters and to truly physical ingredients, such as AGN feedback. In this way, we achieve cluster cosmology without explicit cluster mass calculation.
