Prefer a chat interface with context about you and your work?
FOREGROUND MODEL AND ANTENNA CALIBRATION ERRORS IN THE MEASUREMENT OF THE SKY-AVERAGED λ21 cm SIGNAL AT<i>z</i>∼ 20
The most promising near-term observable of the cosmic dark age prior to widespread reionization (z ∼ 15–200) is the sky-averaged λ21 cm background arising from hydrogen in the intergalactic medium. Though an individual antenna could in principle detect the line signature, data analysis must separate foregrounds that are orders of …