Benvenuti in queste pagine dedicate a scienza ed arte. Amelia Carolina Sparavigna

Tuesday, January 4, 2011

Physics - Chance of thunder and gamma-ray flashes

Physics - Chance of thunder—and gamma-ray flashes
In a paper appearing in Physical Review Letters, scientists in Italy (Tavani et al.) present new space-based observations of gamma-ray emissions from thunderclouds, called terrestrial gamma-ray flashes (TGFs). Their analysis suggests that storms located deep within our atmosphere sometimes produce bursts of electrons with energies up to 100 MeV.