Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data
ABSTRACT The Tunka Advanced Instrument for Gamma- and cosmic-ray Astronomy (TAIGA) is a multicomponent experiment for the measurement of TeV to PeV gamma- and cosmic rays. Our goal is to establish a novel hybrid direct air shower technique, sufficient to access the energy domain of the long-sought P...
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2023
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Online Access: | http://dx.doi.org/10.1093/mnras/stad276 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad276/48943735/stad276.pdf https://academic.oup.com/mnras/article-pdf/529/4/3495/57103048/stad276.pdf |
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croxfordunivpr:10.1093/mnras/stad276 2024-04-28T08:40:13+00:00 Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data Blank, M Tluczykont, M Porelli, A Mirzoyan, R Wischnewski, R Awad, A K Brückner, M Deutsche Forschungsgemeinschaft Helmholtz Association Horizon 2020 2023 http://dx.doi.org/10.1093/mnras/stad276 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad276/48943735/stad276.pdf https://academic.oup.com/mnras/article-pdf/529/4/3495/57103048/stad276.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ Monthly Notices of the Royal Astronomical Society volume 529, issue 4, page 3495-3502 ISSN 0035-8711 1365-2966 Space and Planetary Science Astronomy and Astrophysics journal-article 2023 croxfordunivpr https://doi.org/10.1093/mnras/stad276 2024-04-02T08:04:41Z ABSTRACT The Tunka Advanced Instrument for Gamma- and cosmic-ray Astronomy (TAIGA) is a multicomponent experiment for the measurement of TeV to PeV gamma- and cosmic rays. Our goal is to establish a novel hybrid direct air shower technique, sufficient to access the energy domain of the long-sought Pevatrons. The hybrid air Cherenkov light detection technique combines the strengths of the HiSCORE shower front sampling array, and two ∼4 m class, ∼9.6° field of view Imaging Air Cherenkov Telescopes (IACTs). The HiSCORE array provides good angular and shower core position resolution, while the IACTs provide the image shape and orientation for gamma-hadron separation. In future, an additional muon detector will be used for hadron tagging at ≥100 TeV energies. Here, only data from the first IACT of the TAIGA experiment are used. A randomforest algorithm was trained using Monte Carlo (MC) simulations and real data, and applied to $85\, \mathrm{h}$ of selected observational data tracking the Crab Nebula at a mean zenith angle of 33.5°, resulting in a threshold energy of 6 TeV for this data set. The analysis was performed using the gammapy package. A total of 163.5 excess events were detected, with a statistical significance of 8.5 σ. The observed spectrum of the Crab Nebula is best fit with a power law above 6 TeV with a flux normalization of (3.20 ± 0.42) · 10−10 TeV−1 cm−2 s−1at a reference energy of $13\, \mathrm{TeV}$ and a spectral index of −2.74 ± 0.16. Article in Journal/Newspaper taiga Oxford University Press Monthly Notices of the Royal Astronomical Society |
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Oxford University Press |
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croxfordunivpr |
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English |
topic |
Space and Planetary Science Astronomy and Astrophysics |
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Space and Planetary Science Astronomy and Astrophysics Blank, M Tluczykont, M Porelli, A Mirzoyan, R Wischnewski, R Awad, A K Brückner, M Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
topic_facet |
Space and Planetary Science Astronomy and Astrophysics |
description |
ABSTRACT The Tunka Advanced Instrument for Gamma- and cosmic-ray Astronomy (TAIGA) is a multicomponent experiment for the measurement of TeV to PeV gamma- and cosmic rays. Our goal is to establish a novel hybrid direct air shower technique, sufficient to access the energy domain of the long-sought Pevatrons. The hybrid air Cherenkov light detection technique combines the strengths of the HiSCORE shower front sampling array, and two ∼4 m class, ∼9.6° field of view Imaging Air Cherenkov Telescopes (IACTs). The HiSCORE array provides good angular and shower core position resolution, while the IACTs provide the image shape and orientation for gamma-hadron separation. In future, an additional muon detector will be used for hadron tagging at ≥100 TeV energies. Here, only data from the first IACT of the TAIGA experiment are used. A randomforest algorithm was trained using Monte Carlo (MC) simulations and real data, and applied to $85\, \mathrm{h}$ of selected observational data tracking the Crab Nebula at a mean zenith angle of 33.5°, resulting in a threshold energy of 6 TeV for this data set. The analysis was performed using the gammapy package. A total of 163.5 excess events were detected, with a statistical significance of 8.5 σ. The observed spectrum of the Crab Nebula is best fit with a power law above 6 TeV with a flux normalization of (3.20 ± 0.42) · 10−10 TeV−1 cm−2 s−1at a reference energy of $13\, \mathrm{TeV}$ and a spectral index of −2.74 ± 0.16. |
author2 |
Deutsche Forschungsgemeinschaft Helmholtz Association Horizon 2020 |
format |
Article in Journal/Newspaper |
author |
Blank, M Tluczykont, M Porelli, A Mirzoyan, R Wischnewski, R Awad, A K Brückner, M |
author_facet |
Blank, M Tluczykont, M Porelli, A Mirzoyan, R Wischnewski, R Awad, A K Brückner, M |
author_sort |
Blank, M |
title |
Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
title_short |
Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
title_full |
Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
title_fullStr |
Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
title_full_unstemmed |
Detection of the Crab Nebula using a <scp>randomforest</scp> analysis of the first TAIGA IACT data |
title_sort |
detection of the crab nebula using a <scp>randomforest</scp> analysis of the first taiga iact data |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/mnras/stad276 https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stad276/48943735/stad276.pdf https://academic.oup.com/mnras/article-pdf/529/4/3495/57103048/stad276.pdf |
genre |
taiga |
genre_facet |
taiga |
op_source |
Monthly Notices of the Royal Astronomical Society volume 529, issue 4, page 3495-3502 ISSN 0035-8711 1365-2966 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/mnras/stad276 |
container_title |
Monthly Notices of the Royal Astronomical Society |
_version_ |
1797570938987872256 |