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Title: DETECTION OF RADIO EMISSION FROM FIREBALLS

We present the findings from the Prototype All-Sky Imager, a back end correlator of the first station of the Long Wavelength Array, which has recorded over 11,000 hr 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-duration (10 s of seconds) 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.
Authors:
; ; ; ; ;  [1] ;  [2] ;  [3] ; ;  [4] ;  [5] ;  [6]
  1. Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM 87131 (United States)
  2. NASA Jet Propulsion Laboratory, Pasadena, CA 91109 (United States)
  3. Bradley Department of Electrical Engineering, Virginia Tech, Blacksburg, VA 24061 (United States)
  4. US Naval Research Laboratory, Code 7213, Washington, DC 20375 (United States)
  5. Department of Physics, Long Island University, Brooklyn, NY 11201 (United States)
  6. Department of Physics, Virginia Tech, Blacksburg, VA 24061 (United States)
Publication Date:
OSTI Identifier:
22365780
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal Letters; Journal Volume: 788; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; DETECTION; EMISSION; FLAMES; IMAGES; METEORITES; METEOROIDS; MHZ RANGE; PROBES; TRANSIENTS; WAVELENGTHS