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Hannah Fronenberg

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Preprint Oct 2026

Toward a Complete Interpretation of Global 21 cm Absorption Signals Using the Radio CMB

The global 21 cm signal is among the most direct probes of cosmic dawn, encoding information about when the first stars formed and how efficiently they heated their surroundings. However, such measurements are limited by bright Galactic foregrounds, ionospheric effects, and instrumental systematics. Even a confident de...

Hannah Fronenberg · 0 citations

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