No evidence for EDE from Planck data in extended scenarios

• DOI: 10.1016/j.jheap.2023.05.002
• Publication Date: 2023-05-25T16:50:55Z
• Authors: Emanuele Fondi; Alessandro Melchi...; Luca Pagano
• Keywords: CMB cold spot

The latest data release from the ACT CMB experiment (in combination with previous WMAP data) shows evidence for an Early Dark Energy component at more than $3$ standard deviations. same conclusion has been recently shown to hold when temperature Planck limited intermediate angular scales ($l \le 650$) are included while it vanishes full dataset is considered. However, that exhibits anomalous lensing and a preference closed universe level of three deviation. It therefore utmost importance investigate if these anomalies could anti-correlate early dark energy hide its presence during process parameter extraction. Here we demonstrate extended parameters choices as curvature, equation state amplitude $A_L$ have no impact on constraints EDE. In practice, EDE does not solve spectra anomalies. This indicates current comes essentially ACT-DR4 dataset.