Detection of Radio Emission from Fireballs

Abstract

We present the findings from the Prototype All-Sky Imager (PASI), a backend correlator of the first station of the Long Wavelength Array (LWA1), which has recorded over 11,000 hours of all-sky images at frequencies between 25 and 75 MHz. In a search of this data for radio transients, we have found 49 long (10s of seconds) duration transients. Ten of these transients correlate both spatially and temporally with large meteors (fireballs), and their signatures suggest that fireballs emit a previously undiscovered low frequency, non-thermal pulse. This emission provides a new probe into the physics of meteors and identifies a new form of naturally occurring radio transient foreground.

arXiv comment14 Pages, 5 Figures

References in corpus (10)

• A bright millisecond radio burst of extragalactic origin
• A Population of Fast Radio Bursts at Cosmological Distances
• On the origin of a highly-dispersed coherent radio burst
• Giant Sparks at Cosmological Distances?
• Radio Bursts with Extragalactic Spectral Characteristics Show Terrestrial Origins
• A Revised View of the Transient Radio Sky
• The evolution of the mass-size relation to z=3.5 for UV-bright galaxies and sub-mm galaxies in the GOODS-NORTH field
• Surveying the Dynamic Radio Sky with the Long Wavelength Demonstrator Array
• Limits on GRB Prompt Radio Emission Using the LWA1
• Limits on the event rates of fast radio transients from the V-FASTR experiment

Cited by in corpus (23)

• The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
• LOFAR MSSS: Detection of a low-frequency radio transient in 400 hrs of monitoring of the North Celestial Pole
• Exploring the Transient Radio Sky with VLITE: Early Results
• Low-radio-frequency eclipses of the redback pulsar J2215+5135 observed in the image plane with LOFAR
• Quantifying ionospheric effects on time-domain astrophysics with the Murchison Widefield Array
• Formation of plasma around a small meteoroid: 1. Kinetic theory
• The Scientific Observation Campaign of the Hayabusa-2 Capsule Re-entry
• New Limits on the Low-frequency Radio Transient Sky Using 31 hr of All-sky Data with the OVRO-LWA
• Limits on radio emission from meteors using the MWA
• Altitudinal dependence of meteor radio afterglows measured via optical counterparts
• A Low Frequency Survey of Giant Pulses from the Crab Pulsar
• Detection of a Low-frequency Cosmic Radio Transient Using Two LWA Stations
• Rates, Flux Densities, and Spectral Indices of Meteor Radio Afterglows
• Dynamic Radio Spectra from two Fireballs
• A Real-Time, All-Sky, High Time Resolution, Direct Imager for the Long Wavelength Array
• A Southern-Hemisphere all-sky radio transient monitor for SKA-Low prototype stations
• AARTFAAC Flux Density Calibration and Northern Hemisphere Catalogue at 60 MHz
• Testing the Radiation Pattern of Meteor Radio Afterglow
• A Two Year Survey for VLF Emission from Fireballs
• Optimization and Commissioning of the EPIC Commensal Radio Transient Imager for the Long Wavelength Array
• Broadband Imaging to Study the Spectral Distribution of Meteor Radio Afterglows
• The Intensity of Diffuse Galactic Emission Reflected by Meteor Trails
• Design and Commissioning of an LWA Swarm Station: The Long Wavelength Array -- North Arm