METEOR-RADIOMeteore emittieren niederfrequente Radiowellensignale
Peter Jenniskens: "It's the first detection that is believable because it's based on imaging. ... It's a new way of looking at meteors."
LINKDETECTION OF RADIO EMISSION FROM FIREBALLSK. S. Obenberger, G. B. Taylor, J. M. Hartman, J. Dowell, S. W. Ellingson, J. F. Helmboldt, P. A. Henning, M. Kavic, F. K. Schinzel, J. H. Simonetti, K. Stovall, and T. L. Wilson
The Astrophysical Journal Letters, Volume 788 , Issue 2 (2014 June 20)
LINKWe 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.
Thema: METEOR-RADIO (Gelesen 1713 mal)
