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What is Constraining The Neutral Hydrogen Fraction During Reionization: Cross-Simulation Inference Using Power Spectrum and Bispectrum about?

This study investigates the neutral hydrogen fraction during the Epoch of Reionization using a cross-simulation approach that combines power spectrum and bispectrum analyses. The findings indicate that while the bispectrum adds valuable information, the overall improvement in constraints is moderate, and significant systematic discrepancies between inferred and true values persist. The results highlight the necessity of addressing modeling uncertainties for accurate parameter inference in future observation

Author

gabrielfritzsluzala

Language

EN