2 papers
astro-ph.CO2026
Global 21cm Measurement Calibration Methodology
Martin Bucher, Christian J. Kirkham, Eloy de Lera Acedo +2
21cm global signal observations present a unique set of calibration challenges owing to the absolute character of the required measurement. Since differential measurements on the s…
astro-ph.IM2026
Circuit Modeling for In Situ 21 cm Radiometer Calibration
Gary Vincent Charles Allen, Saurabh Pegwal, Dirk de Villiers +42
Recent experiments in cosmology, particularly those aimed at detecting the faint, redshifted, global 21 cm hydrogen line (depth < ~200 mK, z > 7.5), have imposed stringent new requ…