ISW Maps for Dark Energy Models
Published:Dec 30, 2025 17:27
•1 min read
•ArXiv
Analysis
This paper is significant because it provides a publicly available dataset of Integrated Sachs-Wolfe (ISW) maps for a wide range of dark energy models ($w$CDM). This allows researchers to test and refine cosmological models, particularly those related to dark energy, by comparing theoretical predictions with observational data from the Cosmic Microwave Background (CMB). The validation of the ISW maps against theoretical expectations is crucial for the reliability of future analyses.
Key Takeaways
- •Publicly available ISW maps for 791 $w$CDM cosmologies.
- •Enables ISW analyses across a broad dark-energy parameter space.
- •Validation against linear theory expectations confirms the reliability of the methodology.
- •Quintessence models show higher ISW amplitudes than phantom models.
Reference
“Quintessence-like models ($w > -1$) show higher ISW amplitudes than phantom models ($w < -1$), consistent with enhanced late-time decay of gravitational potentials.”