Fast Radio Bursts from Extragalactic Light Sails

Abstract

We examine the possibility that Fast Radio Bursts (FRBs) originate from the activity of extragalactic civilizations. Our analysis shows that beams used for powering large light sails could yield parameters that are consistent with FRBs. The characteristic diameter of the beam emitter is estimated through a combination of energetic and engineering constraints, and both approaches intriguingly yield a similar result which is on the scale of a large rocky planet. Moreover, the optimal frequency for powering the light sail is shown to be similar to the detected FRB frequencies. These `coincidences' lend some credence to the possibility that FRBs might be artificial in origin. Other relevant quantities, such as the characteristic mass of the light sail, and the angular velocity of the beam, are also derived. By using the FRB occurrence rate, we infer upper bounds on the rate of FRBs from extragalactic civilizations in a typical galaxy. The possibility of detecting fainter signals is briefly discussed, and the wait time for an exceptionally bright FRB event in the Milky Way is estimated.

7 pages, Accepted for publication in The Astrophysical Journal Letters (ApJL)

References in corpus (27)

• A bright millisecond radio burst of extragalactic origin
• A Population of Fast Radio Bursts at Cosmological Distances
• A Repeating Fast Radio Burst
• The Occurrence and Architecture of Exoplanetary Systems
• The direct localization of a fast radio burst and its host
• Most 1.6 Earth-Radius Planets are not Rocky
• The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102
• FRBCAT: The Fast Radio Burst Catalogue
• Terrestrial Planet Occurrence Rates for the Kepler GK Dwarf Sample
• Fast radio bursts: the last sign of supramassive neutron stars
• The repeating Fast Radio Burst FRB 121102: Multi-wavelength observations and additional bursts
• A real-time fast radio burst: polarization detection and multiwavelength follow-up
• A possible connection between Fast Radio Bursts and Gamma-Ray Bursts
• Fast radio bursts may originate from nearby flaring stars
• Fast Radio Bursts---A Brief Review: Some Questions, Fewer Answers
• Physical Constraints On Fast Radio Burst
• The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. I. Background and Justification
• Discovery of a transient gamma-ray counterpart to FRB 131104
• Extragalactic SETI: The Tully-Fisher relation as a probe of Dysonian astroengineering in disk galaxies
• On The History and Future of Cosmic Planet Formation
• SETI via Leakage from Light Sails in Exoplanetary Systems
• A Numerical Testbed for Hypotheses of Extraterrestrial Life and Intelligence
• The Allen Telescope Array Fly's Eye Survey for Fast Radio Transients
• Fast radio bursts: the observational case for a Galactic origin
• Constraining the CMB Optical Depth Through the Dispersion Measure of Cosmological Radio Transients
• Interstellar Communication: The Case for Spread Spectrum
• Power Beaming Leakage Radiation as a SETI Observable

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• Fast Radio Bursts
• A Living Theory Catalogue for Fast Radio Bursts
• Highest-frequency detection of FRB 121102 at 4-8 GHz using the Breakthrough Listen Digital Backend at the Green Bank Telescope
• The Physics of Fast Radio Bursts
• Science with e-ASTROGAM (A space mission for MeV-GeV gamma-ray astrophysics)
• Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach
• The host galaxies and progenitors of Fast Radio Bursts localized with the Australian Square Kilometre Array Pathfinder
• Could Solar Radiation Pressure Explain 'Oumuamua's Peculiar Acceleration?
• FRB event rate counts I --- Interpreting the Observations
• Coherent curvature radiation and Fast Radio Bursts
• Finding the Missing Baryons with Fast Radio Bursts and Sunyaev-Zeldovich Maps
• Natural and Artificial Spectral Edges in Exoplanets
• Relative Likelihood of Success in the Searches for Primitive versus Intelligent Extraterrestrial Life
• Possible Photometric Signatures of Moderately Advanced Civilizations: The Clarke Exobelt
• Visions of Human Futures in Space and SETI
• The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies
• Propulsion of Spacecrafts to Relativistic Speeds Using Natural Astrophysical Sources
• Strategies and Advice for the Search for Extraterrestrial Intelligence
• A Comprehensive Analysis on Repeating Fast Radio Bursts
• Luminosity-duration relation of fast radio bursts
• The Impact of the Temporal Distribution of Communicating Civilizations on their Detectability
• Electric sails are potentially more effective than light sails near most stars
• The Search for Extra-Galactic Intelligence Signal Synchronized with a Binary Neutron Star Merger
• The Low Frequency Perspective on Fast Radio Bursts
• Artificial Broadcasts as Galactic Populations: I. A Point Process Formalism for Extraterrestrial Intelligences and Their Broadcasts
• A Quantitative Assessment of Communicating Extra-Terrestrial Intelligent Civilizations in the Galaxy and the Case of FRB-like Signals
• Limitations of Chemical Propulsion for Interstellar Escape from Habitable Zones around Low-Mass Stars
• One of Everything: The Breakthrough Listen Exotica Catalog
• Technosignatures longevity and Lindy's law
• Constraining the Environmental Properties of FRB 131104 Using the Unified Dynamical Afterglow Model
• Undetected past contacts with technological species: implications for technosignature science
• A technique to detect periodic and non-periodic ultra-rapid flux time variations with standard radio-astronomical data
• Reflection from Inclined, Relativistic Light Sails