Improved 2-sigma upper limits on the 21-cm brightness temperature power spectrum at z=8.2 from MWA drift scans, reaching (98.67)^2 mK^2 at k=0.156 Mpc^{-1} after combining 23 pointings, about 3 times lower than earlier MWA limits.
The best2𝜎 upper limit from a single PC is shown in boldface
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The Tracking Tapered Gridded Estimator for the 21-cm power spectrum from the Murchison Widefield Array (MWA) drift scan observations -- III. Improved upper limits at $z = 8.2$ from multiple pointings
Improved 2-sigma upper limits on the 21-cm brightness temperature power spectrum at z=8.2 from MWA drift scans, reaching (98.67)^2 mK^2 at k=0.156 Mpc^{-1} after combining 23 pointings, about 3 times lower than earlier MWA limits.