Strategies for the Detection of ET Probes Within Our Own Solar System
John Gertz

TL;DR
This paper discusses strategies for detecting extraterrestrial probes within our Solar System, emphasizing the importance of wide-field searches over sensitivity to identify potentially bright local signals.
Contribution
It proposes specific detection strategies focused on local ET probes, contrasting with traditional star-targeted SETI methods.
Findings
Wider field-of-view strategies can improve detection of local ET probes.
Local ET probes are likely to emit brighter signals than distant interstellar beacons.
Traditional sensitivity-focused SETI may miss nearby probes due to its narrow focus.
Abstract
Arguments are reviewed in support of the hypothesis that ET would more likely send physical probes to surveil our Solar System and communicate with Earth than to communicate from afar with interstellar radio, infrared or laser beacons. Although the standard SETI practice of targeting individual stars or galaxies with powerful telescopes might detect a foreground local probe by serendipity, an intentional hunt for those probes would entail a different set of strategies, most notably sacrificing sensitivity (needed to detect a very faint and very distant signal) in exchange for a widened field-of-view (because a local signal can be reasonably hypothesized to be relatively bright). This paper suggests a number of strategies to detect local ET probes.
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Taxonomy
TopicsSpace Science and Extraterrestrial Life · Planetary Science and Exploration · Space exploration and regulation
