Stellar Space Weather Can Broaden Narrowband Signals From Extraterrestrial Transmitters, Study Finds
To the point
Space weather around distant stars can smear an alien transmitter’s signal from ultra-narrow to a broader, fainter sweep by the time it reaches Earth, and Vishal Gajjar and Grayce Brown of the SETI Institute show this by modeling broadening across star types and frequencies, noting that M-dwarfs are especially prone and calling for broader, more flexible signal-processing in searches.
