2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), May 2018, pp.1-1
The 21-cm spectral line emitted by neutral hydrogen in the intergalactic medium (IGM) at redshifts 〉 6, can be used to characterize the first generations of stars, galaxies, and black holes in the Universe. Due to redshift, the 21-cm signal is expected at frequencies 〈 200 MHz for z 〉 6. The Experiment to Detect the Global EoR Signature (EDGES) measures the sky-average, or global, brightness temperature spectrum in the frequency range 50-200 MHz, with the objective of characterizing the cosmological 21-cm signal. The EDGES instruments are single-antenna, absolutely-calibrated, total-power radiometers. They conduct observations from the Murchison Radio-astronomy Observatory in Western Australia.
Instruments ; Image Edge Detection ; Data Mining ; Observatories ; Frequency Measurement ; Calibration ; Receivers
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