Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004

Details Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004 Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3808805t&link_type=abstract

Geophysical Research Letters, Volume 38, Issue 8, CiteID L08805

Astronomy and Astrophysics

Astrophysics

Radio Science: Ionospheric Physics (1240, 2400), Ionosphere: Ionospheric Disturbances, Solar Physics, Astrophysics, And Astronomy: X-Rays, Gamma Rays, And Neutrinos, Atmospheric Processes: Atmospheric Electricity

Scientific paper

We report on the first clear detection of transient Extremely-Low-Frequency (ELF) signal caused by an extremely intense cosmic gamma-ray flare. On 2004 December 27, the brightest gamma-ray flare ever recorded was observed by numerous satellites. A transient ELF emission observed at Moshiri and Onagawa in Japan exactly coincided with the peak time of the flare, and its wide pulse width of ˜40 ms disfavors the possibility of lightning origin. Furthermore, the two horizontal components of ELF magnetic field data recorded at Esrange in Sweden showed clear transient Schumann resonance waveforms. The source direction determined by the Lissajous method roughly corresponds to the subflare point. The chance probability that a sprite occurs within 30 ms of the peak flare time is ˜0.025%, which again clearly excludes the sprite origin. Thus, a bright cosmic gamma-ray flare is a new source of transient ELF radio signals observed on the Earth, although the emission mechanism needs to be clarified in future.

Affiliated with

Also associated with

No associations

Rating

Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of transient ELF emission caused by the extremely intense cosmic gamma-ray flare of 27 December 2004 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-767022