Measurements of the global 21-cm signal from the Cosmic Dawn

TL;DR

This paper reports early results from the Large-Aperture Experiment aimed at detecting the global 21-cm signal from the Cosmic Dawn, providing insights into the universe's first luminous sources during a neutral intergalactic medium.

Contribution

It presents the status and initial findings of a new experiment targeting the 21-cm signal in the redshift range 16 to 30, advancing observational efforts in this epoch.

Findings

Early detection constraints on the 21-cm signal

Progress in observational techniques for high-redshift signals

Initial data supporting the feasibility of the experiment

Abstract

The sky-averaged (global) 21-cm signal is a very promising probe of the Cosmic Dawn, when the first luminous sources were formed and started to shine in a substantially neutral intergalactic medium. I here report on the status and early result of the Large-Aperture Experiment to Detect the Dark Age that focuses on observations of the global 21-cm signal in the $16 \lesssim z \lesssim 30$ range.