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Gamma Ray

Gamma Ray

Earth Gamma Ray Blasters

From NASA Goddard Space Flight Center. NASA's Fermi Gamma-ray Space Telescope has been catching brief outbursts of high-energy light that are mysteriously produced above thunderstorms. The outbursts, known as terrestrial gamma-ray flashes (TGFs), last only a few thousandths of a second, but their gamma rays rank among the highest-energy light that naturally occurs on Earth. The enhanced GBM discovery rate helped scientists show most TGFs also generate a strong burst of radio waves, a finding that will change how scientists study this poorly understood phenomenon. Lightning emits a broad range of very low frequency (VLF) radio waves, often heard as pop-and-crackle static when listening to AM radio. The World Wide Lightning Location Network (WWLLN), researchers routinely detect these radio signals and use them to pinpoint the location of lightning discharges anywhere on the globe to within about 20 km. Scientists have known for a long time TGFs were linked to strong VLF bursts, but they interpreted these signals as originating from lightning strokes somehow associated with the gamma-ray emission. The researchers identified much weaker radio bursts that occur up to several thousandths of a second before or after a TGF. They interpret these signals as intracloud lightning strokes related to, but not created by, the gamma-ray flash. Scientists suspect TGFs arise from the strong electric fields near the tops of thunderstorms. Under certain conditions, the field becomes strong enough that it drives a high-speed upward avalanche of electrons, which give off gamma rays when they are deflected by air molecules. Because the WWLLN radio positions are far more precise than those based on Fermi's orbit, scientists will develop a much clearer picture of where TGFs occur and perhaps which types of thunderstorms tend to produce them. The GBM scientists predict the new operating mode and analysis techniques will allow them to catch about 850 TGFs each year. While this is a great improvement, it remains a small fraction of the roughly 1,100 TGFs that fire up each day somewhere on Earth, according to the team's latest estimates.

Videos

Gamma Ray 'Hellbent' Official Lyric Video from the new album 'Empire Of The Undead'

Pre-order the album now: CD+DVD: http://smarturl.it/GR_EOTU_SPEC | CD: http://smarturl.it/GR_EUTU_CD | 2Vinyl: http://smarturl.it/GR_EUTU_LP 'Empire Of The U...

Gamma Ray 'Empire Of The Undead' Song 1 'Avalon'

Order the album now: CD+DVD: http://smarturl.it/GR_EOTU_SPEC | CD: http://smarturl.it/GR_EUTU_CD | 2Vinyl: http://smarturl.it/GR_EUTU_LP | iTunes: http://sma...

Gamma Ray - Man On A Mission

from 1995 masterpiece Land Of The Free.

Gamma Ray - Future World (Feat. Michael Kiske)

Gamma Ray Heading for the East Full Concert

00:00 Lust For Life 07:42 Heaven Can Wait 12:06 Space Eater 17:36 Freetime 24:29 Who Do You Think You Are 30:18 The Silence 37:24 Save Us 45:12 I Want Out 49...

Gamma Ray 'Empire Of The Undead' Song 10 'I Will Return'

Order the album now: CD+DVD: http://smarturl.it/GR_EOTU_SPEC | CD: http://smarturl.it/GR_EUTU_CD | 2Vinyl: http://smarturl.it/GR_EUTU_LP | iTunes: http://sma...

Birth Control - Gamma Ray

Birth Control - Gamma Ray - Video @ Pearl Harbour.

Gamma Ray "Master Of Confusion" Official Rehearsal Lyric Video (HD)

Order here (Germany): Amazon: http://amzn.to/TJLCLl UK: iTunes https://itunes.apple.com/gb/album/master-of-confusion/id606860170 Amazon MP3 http://www.amazon...

GAMMA RAY "To The Metal!" (Official Video HD)

The first single from Gamma Ray's studio album of the same title. This video, together with videos for "Rise" and "Empathy" can be found on the CD+DVD limite...