Naoki Seto
October 10, 2024
Zoom recording
Abstract:
We discuss a Galaxy-wide coordinated signaling scheme in which a SETI observer needs to examine only a small fraction of the sky. The target sky directions are determined over time, based on high-precision measurements of conspicuous astronomical events within the Galaxy. In several respects, such a coordinated scheme would be beneficial for both transmitters and observers, and may have already been widely adopted as a tacit adjustment. As potential candidates for these conspicuous astronomical events, we consider future binary neutron star mergers and past supernova explosions recorded over the last ~2000 years. Additionally, we discuss a similar method for technosignature search in the direction of the Galactic center.