论文标题
Planck ISW透射可能性和CMB温度
Planck ISW-lensing likelihood and the CMB temperature
论文作者
论文摘要
我们提出了一种新的Planck CMB镜头CMB温度互相关的可能性，可用于通过集成的Sachs-Wolfe（ISW）效应来限制宇宙学。 CMB镜头是ISW的出色示踪剂，我们使用最新的PR4 Planck数据图和镜头重建来产生首个公共Planck可能性，以限制该信号。我们通过仅在Planck数据中限制CMB背景温度来证明可能性，在Planck数据中，ISW镜头互相关是破坏几何变性的强大方法，从而实质上改善了CMB的约束和单独的镜头功率谱。
We present a new Planck CMB lensing-CMB temperature cross-correlation likelihood that can be used to constrain cosmology via the Integrated Sachs-Wolfe (ISW) effect. CMB lensing is an excellent tracer of ISW, and we use the latest PR4 Planck data maps and lensing reconstruction to produce the first public Planck likelihood to constrain this signal. We demonstrate the likelihood by constraining the CMB background temperature from Planck data alone, where the ISW-lensing cross-correlation is a powerful way to break the geometric degeneracy, substantially improving constraints from the CMB and lensing power spectra alone.
