| Title: | Interpolation of Instrument Response Functions for the Cherenkov Telescope Array in the context of pyirf |
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| Authors: | ID Dominik, R. M. (Author)
ID Bhattacharyya, Saptashwa (Author)
ID Pérez Romero, Judit (Author)
ID Stanič, Samo (Author)
ID Vodeb, Veronika (Author)
ID Vorobiov, Serguei (Author)
ID Zavrtanik, Danilo (Author)
ID Zavrtanik, Marko (Author)
ID Živec, Miha (Author), et al. |
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| Files: |  ICRC2023_618.pdf (987,03 KB)
MD5: 50997978F683225593CD338E4791978F
 https://pos.sissa.it/444
https://pos.sissa.it/444/618/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: | The Cherenkov Telescope Array (CTA) will be the next generation ground-based very-high-energy gamma-ray observatory, constituted by tens of Imaging Atmospheric Cherenkov Telescopes at two sites once its construction and commissioning are finished. Like its predecessors, CTA relies on Instrument Response Functions (IRFs) to relate the observed and reconstructed properties to the true ones of the primary gamma-ray photons. IRFs are needed for the proper reconstruction of spectral and spatial information of the observed sources and are thus among the data products issued to the observatory users. They are derived from Monte Carlo simulations, depend on observation conditions like the telescope pointing direction or the atmospheric transparency and can evolve with time as hardware ages or is replaced. Producing a complete set of IRFs from simulations for every observation taken is a time-consuming task and not feasible when releasing data products on short timescales. Consequently, interpolation techniques on simulated IRFs are investigated to quickly estimate IRFs for specific observation conditions. However, as some of the IRFs constituents are given as probability distributions, specialized methods are needed. This contribution summarizes and compares the feasibility of multiple approaches to interpolate IRF components in the context of the pyirf python software package and IRFs simulated for the Large-Sized Telescope prototype (LST-1). We will also give an overview of the current functionalities implemented in pyirf. |
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| Keywords: | Cherenkov Telescope Array, CTA, ground-based very-high-energy gamma-ray observatory, pyirf |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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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. 1-16 |
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| PID: | 20.500.12556/RUNG-8450-ecb5b1fa-91bd-08d0-bf66-cb6619a9efe1  |
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| COBISS.SI-ID: | 165791235 |
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| UDC: | 539.1 |
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| ISSN on article: | 1824-8039 |
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| NUK URN: | URN:SI:UNG:REP:PBGY4KDH |
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| Publication date in RUNG: | 26.09.2023 |
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| Views: | 610 |
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| Downloads: | 4 |
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