SETI & Technosignatures

SETI: Finding The ET Signal From The Cosmic Noise

By Keith Cowing
Press Release
February 21, 2024
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SETI: Finding The ET Signal From The Cosmic Noise
A close-up of the upper center portion or “hub” of the hypothetical ET interplanetary nav/comm network that was shown in Figure 3.1. — astro-ph.IM

This paper highlights a methodological approach designed to enhance the search for extraterrestrial intelligence (SETI) by hypothesizing that a transmission technosignature would likely have two features: 1) be wideband in the microwave or higher frequency range that originates from a hub within a supposed ET interplanetary navigation/communication (nav/comm) network, and 2) contain x-ray pulsar-based navigation (XNAV) metadata.

Potential contributions to the field include improved accuracy in finding transmission technosignatures and other technosignatures in the electromagnetic spectrum, a common standard in reaching a Schelling Point (a mutual realization of how we and ETs can find each other), and operationalizing models such as the Drake Equation.

A visualization of hypothetical ET interplanetary nav/comm network of 96 exoplanets targeted for observation using the French radio telescope NenuFAR, based on a community network analysis. (Figure courtesy of Caleb Jones) — astro-ph.IM

Ross Davis

Comments: 13 pages. v2 incorporates a few grammatical corrections
Subjects: Popular Physics (physics.pop-ph); Instrumentation and Methods for Astrophysics (astro-ph.IM)
Cite as: arXiv:2204.04405 [physics.pop-ph] (or arXiv:2204.04405v3 [physics.pop-ph] for this version)
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Submission history
From: Ross Davis
[v1] Sat, 9 Apr 2022 06:26:25 UTC (4,518 KB)
[v2] Mon, 2 May 2022 14:25:04 UTC (4,802 KB)
[v3] Sun, 18 Feb 2024 23:30:02 UTC (4,672 KB)
Astrobiology, SETI,

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