Stellar Winds and Coronal Mass Ejections Smear Narrowband Technosignals, Complicating SETI Searches
To the point
Vishal Gajjar and Grayce C. Brown show that a star’s own wind, activity, and coronal mass ejections can smear and weaken narrow radio signals, especially around red dwarfs, making some technosignatures harder to detect and suggesting SETI searches should account for this local smearing.
