DETECTION OF RADIO EMISSION FROM FIREBALLS

Journal Article · Fri Jun 20 00:00:00 EDT 2014 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/788/2/L26· OSTI ID:22365780

Obenberger, K. S.; Taylor, G. B.; Dowell, J.; Henning, P. A.; Schinzel, F. K.; Stovall, K. ^[1]; Hartman, J. M. ^[2]; Ellingson, S. W. ^[3]; Helmboldt, J. F.; Wilson, T. L. ^[4]; Kavic, M. ^[5]; Simonetti, J. H. ^[6]

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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)

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.

• OSTI ID: 22365780
• Journal Information: Astrophysical Journal Letters, Vol. 788, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
DETECTION
EMISSION
FLAMES
IMAGES
METEORITES
METEOROIDS
MHZ RANGE
PROBES
TRANSIENTS
WAVELENGTHS