Testing for calibration systematics in the EDGES low-band data using Bayesian model selection
Testing for calibration systematics in the EDGES low-band data using Bayesian model selection
ABSTRACT Cosmic Dawn (CD), when the first stars and proto-galaxies began to form, is commonly expected to be accompanied by an absorption signature at radio frequencies. This feature arises as Lyman α photons emitted by these first luminous objects couple the 21 cm excitation temperature of intergalactic hydrogen gas to …