| Title: | High-speed video camera observations associated with a terrestrial gamma-ray flash at the Telescope Array Detector |
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| Authors: | ID Abbasi, R. (Author)
ID Abbasi, R. U. (Author)
ID Abe, Y. (Author)
ID Abu-Zayyad, T. (Author)
ID Allen, M. (Author)
ID Arai, Yasuhiko (Author)
ID Arimura, R. (Author)
ID Barcikowski, E. (Author)
ID Belz, J. W. (Author)
ID Bergman, Douglas R. (Author)
ID Lundquist, Jon Paul (Author), et al. |
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| Files: |  ICRC2023_250.pdf (2,91 MB)
MD5: 180E06E50BECE15B9EDF282D48D82CBB
 https://pos.sissa.it/444/250/
https://pos.sissa.it/444/250/pdf
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | This work presents observations of the optical emission of a lightning flash in conjunction with a downward-directed Terrestrial Gamma-ray Flash (TGF) at the Telescope Array detector. Previously in ICRC-2021, we reported joint observations by the Telescope Array Surface Detector (TASD), the Lightning Mapping Array, a sferic sensor, and a broadband interferometer of particle showers in coincidence with lightning. These observations consisted of energetic showers of approximately less than 10-microsecond duration with footprints on the ground of 3-6 kilometers in diameter, originating in the first one to two milliseconds of downward lightning leaders and in coincidence with the initial breakdown pulses stage of negative cloud-to-ground lighting leaders. Scintillator waveform and simulation studies confirmed that these showers must consist primarily of gamma radiations.
In this work, we use the TASD detector, together with a high-speed video camera, in conjunction with multiple lightning instruments at the TASD site, to report on the optical emission associated with a downward-directed terrestrial gamma-ray flash. Results from this study allow us to further
the understanding of the initiation and propagation mechanism of terrestrial gamma-ray flashes. It will also further our ability to compare the most recent satellite optical emissions counterpart of upward-directed TGFs to that of downward-directed TGFs. |
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| Keywords: | Telescope Array, low energy extension, indirect detection, hybrid detection |
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| Publication date: | 01.01.2023 |
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| Year of publishing: | 2023 |
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| Number of pages: | str. 1-10 |
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| PID: | 20.500.12556/RUNG-8562-d4ec4769-8723-a040-8be4-c0de7ce8a2a6  |
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| COBISS.SI-ID: | 167697923 |
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| UDC: | 539.1 |
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| ISSN on article: | 1824-8039 |
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| DOI: | 10.22323/1.444.0250 |
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| NUK URN: | URN:SI:UNG:REP:C19O8CCG |
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| Publication date in RUNG: | 10.10.2023 |
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| Views: | 617 |
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| Downloads: | 5 |
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