The Search for Extra-Galactic Intelligence Signal Synchronized with a Binary Neutron Star Merger

Abstract

We discuss the possibility of receiving a radio signal from extra-Galactic intelligence, around the time when we observe a binary neutron star merger in their galaxy. High-precision measurements of the binary parameters allow them to send the signal ~ $10^4$ years before they themselves observe the merger signal. Using the SKA, we might receive ~ $10^4$ bits of data, transmitted from 40 Mpc distance with the output power of ~ 1 TW. We also discuss related topics for GW170817 and mention potential roles of future gravitational wave detectors in relation to this transmission scheme.

6 pages, 1 figure, matched to the published version

References in corpus (9)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Multi-messenger Observations of a Binary Neutron Star Merger
• Tests of general relativity from timing the double pulsar
• A Radio Counterpart to a Neutron Star Merger
• Timing Measurements of the Relativistic Binary Pulsar PSR B1913+16
• A mildly relativistic wide-angle outflow in the neutron star merger GW170817
• The Dipole Repeller
• Distance and properties of NGC 4993 as the host galaxy of a gravitational wave source, GW170817
• Fast Radio Bursts from Extragalactic Light Sails

Cited by in corpus (6)

• How to detect the shortest-period binary pulsars in the era of LISA
• Possibility of a coordinated signaling scheme in the Galaxy and SETI experiments
• Intermittent Signals and Planetary Days in SETI
• Search for Galactic Civilizations Using Historical Supernovae
• Artificial Broadcasts as Galactic Populations: I. A Point Process Formalism for Extraterrestrial Intelligences and Their Broadcasts
• A proposal for enhancing technosignature search toward the Galactic center