Stellar Plasma May Blur Narrowband Signals, Reframing the Search for Technosignatures
To the point
Dr. Vishal Gajjar and Grayce C Brown say ultra-narrow radio signals from distant civilizations can be broadened and weakened as they pass through a star’s plasma, especially around active M-dwarfs, causing them to slip below traditional detection thresholds and suggesting we should search for broader, fuzzier signals.
