An intracloud discharge caused by extensive atmospheric shower

Gurevich, A. V.; Mitko, G.G.; Antonova, V. P.; Chubenko, A. P.; Karashtin, A. N.; Kryukov, S. V.; Naumov, A.S.; Pavljuchenko, L.V.; Ptitsyn, M.O.; Ryabov, V. A.; Shalamova, S.Ya.; Shepetov, A. L.; Shlyugaev, Yu. V.; Vildanova, L. I.; Zybin, K. P.

doi:10.1016/j.physleta.2009.07.085

Cited by 39 publications

(19 citation statements)

References 6 publications

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“…A number of observations have been made at the Tien Shan High-Altitude Scientific Station of the Physical Institute of the Academy of Sciences (Antonova et al 2007;Chubenko et al 2000Chubenko et al , 2003Gurevich et al 2004cGurevich et al , 2009aGurevich et al , 2009bGurevich et al , 2011a. This facility, which is located between 3.4 and 4 km above sea level, has the capability of recording RF signals, gamma-rays and cosmic-ray air showers.…”

Section: Detailed Investigationsmentioning

confidence: 99%

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High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

2012

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It is now well established that both thunderclouds and lightning routinely emit x-rays and gamma-rays. These emissions appear over wide timescales, ranging from submicrosecond bursts of x-rays associated with lightning leaders, to sub-millisecond bursts of gamma-rays seen in space called terrestrial gamma-ray flashes, to minute long glows from thunderclouds seen on the ground and in or near the cloud by aircraft and balloons. In particular, terrestrial gamma-ray flashes (TGFs), which are thought to be emitted by thunderclouds, are so bright that they sometimes saturate detectors on spacecraft hundreds of kilometers away. These TGFs also generate energetic secondary electrons and positrons that are detected by spacecraft in the inner magnetosphere. It is generally believed that these x-ray and gamma-ray emissions are generated, via bremsstrahlung, by energetic runaway electrons that are accelerated by electric fields in the atmosphere. In this paper, we review this newly emerging field of High-Energy Atmospheric Physics, including the production of runaway electrons, the production and propagation of energetic radiation, and the effects of both on atmospheric electrodynamics.

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Section: Detailed Investigationsmentioning

confidence: 99%

“…Gammarays were also reported before the return strokes of natural lightning. Gurevich et al (2009a) reported an interesting event in which their EAS trigger coincided with a strong gamma-ray pulse followed by an abrupt decrease in the background gamma-ray flux. They interpreted Fig.…”

Section: Detailed Investigationsmentioning

confidence: 99%

High-Energy Atmospheric Physics: Terrestrial Gamma-Ray Flashes and Related Phenomena

2012

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“…In this model calculation the reversal occurs during a single timestep, rather than gradually: the motivation is to show how the electron dynamics is modified by the pre-existing, comparatively static ion tail, leading for example to enhanced metastable creation. Although the calculation is therefore not entirely self-consistent, it can still be informative, particularly in the case where there is a a discontinuous, sudden change in the local electrical environment (arising for example from an external field-creating event, such as a cosmic ray strike [25,26]). …”

Section: Field Reversalmentioning

confidence: 99%

Simulation of transient energy distributions in sub-ns streamer formation

MacLachlan¹,

Potts²,

Diver³

2013

Plasma Sources Sci. Technol.

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Abstract. Breakdown and streamer formation is simulated in atmospheric pressure nitrogen for a 2-D planar electrode system. A PIC code with multigrid potential solver is used to simulate the evolution of the non-equilibrium ionization front on sub-nanosecond timescales. The ion and electron energy distributions are computed, accounting for including inelastic scattering of electrons, and collisionally excited metastable production and ionization.Of particular interest is the increased production of metastable and low-energy ions and electrons when the applied field is reversed during the progress of the ionization front, giving insight into the improved species yields in nanosecond pulsed systems.

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“…The Tien-Shan station is a unique place to examine the interconnection between cosmic rays and lightning discharges [3,4]. During a summer season (from the end of May until the beginning of September) thunderstorm clouds pass directly at the height of station.…”

Section: Introductionmentioning

confidence: 99%