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astro-ph.CO2026
Methodological Frontiers in 21-cm Intensity Mapping: the Treatment of Systematics and Foreground Contamination
Marta Spinelli, Matilde Barberi-Squarotti, José Luis Bernal +29
The distribution of neutral hydrogen (HI) in the post-reionization universe traces the cosmic large-scale structure and therefore serves as a powerful cosmological probe. An effici…
astro-ph.IM2026
Bayesian component separation and power spectrum estimation for 21 cm intensity mapping data cubes
Geoff G. Murphy, Philip Bull, Mario G. Santos +2
Foreground removal remains an ongoing challenge in radio cosmology, and increasingly sensitive experiments necessitate more robust analysis techniques. In this work, we model simul…