Velocity acoustic oscillations in the cosmic dawn 21 cm signal can constrain Lyman-Werner feedback efficiency, with accurate recovery in noise-free simulations but requiring over 10,000 hours of SKA integration under optimistic assumptions.
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Constraining Lyman-Werner Feedback from Velocity Acoustic Oscillations in the Cosmic Dawn 21 cm Signal
Velocity acoustic oscillations in the cosmic dawn 21 cm signal can constrain Lyman-Werner feedback efficiency, with accurate recovery in noise-free simulations but requiring over 10,000 hours of SKA integration under optimistic assumptions.