کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8132653 | 1523323 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Estimation of the height of the first interaction in gamma-ray showers observed by Cherenkov telescopes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
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چکیده انگلیسی
Very high energy gamma rays entering the atmosphere initiate Extensive air showers (EAS). The Cherenkov light induced by an EAS can be observed by ground-based telescopes to study the primary gamma rays. An important parameter of an EAS, determining its evolution, is the height of the first interaction of the primary particle. However, this variable cannot be directly measured by Cherenkov telescopes. We study two simple, independent methods for the estimation of the first interaction height. We test the methods using the Monte Carlo simulations for the 4 Large Size Telescopes (LST) that are part of the currently constructed Cherenkov Telescope Array (CTA) Observatory. We find that using such an estimated parameter in the gamma/hadron separation can bring a mild improvement (â¼10â20%) in the sensitivity in the energy range â¼30â200Â GeV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 103, December 2018, Pages 108-114
Journal: Astroparticle Physics - Volume 103, December 2018, Pages 108-114
نویسندگان
Julian Sitarek, Dorota SobczyÅska, Katarzyna Adamczyk, MichaÅ Szanecki, Konrad Bernlöhr,