NICHE: Air-Cherenkov observation at the TA site

Autor: Bergman Douglas R., Tsunesada Yoshiki, Krizmanic John F., Omura Yugo
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: EPJ Web of Conferences, Vol 210, p 05001 (2019)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/201921005001
Popis: The Non-Imaging CHErenkov (NICHE) Array has been deployed at the Telescope Array Middle Drum site, and has been collecting data. We see many coincidences with TALE fluorescence mirror events, establishing hybrid imaging/non-imaging air-Cherenkov observation of cosmic ray air showers. We have verified the TALE Profile-Constrained Geometry Fit of Cherenkov events at the 3° level. We have performed hybrid timing fits between NICHE and TALE and have established that the growth in the FWHM of the NICHE signal with the distance of the shower core depends on the height of the shower maximum.
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