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| Verfasst von: | Acero, Fabio [VerfasserIn]  |
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| | Hinton, James Anthony [VerfasserIn] |
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| | Hofmann, Werner [VerfasserIn] |
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| | Quirrenbach, Andreas [VerfasserIn] |
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| | Rieger, Frank M. [VerfasserIn] |
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| | Wagner, Stefan [VerfasserIn] |
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| Titel: | Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants |
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| Verf.angabe: | The Cherenkov Telescope Array Consortium, F. Acero, J. Hinton, D. Hoffmann, A. Quirrenbach, F. Rieger, S.J. Wagner [und viele weitere] |
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| E-Jahr: | 2023 |
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| Jahr: | 10 April 2023 |
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| Umfang: | 28 S. |
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| Fussnoten: | Online verfügbar 24 March 2023, Version des Artikels 10 April 2023 ; Gesehen am 09.10.2023 |
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| Titel Quelle: | Enthalten in: Astroparticle physics |
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| Ort Quelle: | Amsterdam [u.a.] : Elsevier Science, 1992 |
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| Jahr Quelle: | 2023 |
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| Band/Heft Quelle: | 150(2023) vom: Aug., Artikel-ID 102850, Seite 1-28 |
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| ISSN Quelle: | 0927-6505 |
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| Abstract: | The local Cosmic Ray (CR) energy spectrum exhibits a spectral softening at energies around 3 PeV. Sources which are capable of accelerating hadrons to such energies are called hadronic PeVatrons. However, hadronic PeVatrons have not yet been firmly identified within the Galaxy. Several source classes, including Galactic Supernova Remnants (SNRs), have been proposed as PeVatron candidates. The potential to search for hadronic PeVatrons with the Cherenkov Telescope Array (CTA) is assessed. The focus is on the usage of very high energy γ-ray spectral signatures for the identification of PeVatrons. Assuming that SNRs can accelerate CRs up to knee energies, the number of Galactic SNRs which can be identified as PeVatrons with CTA is estimated within a model for the evolution of SNRs. Additionally, the potential of a follow-up observation strategy under moonlight conditions for PeVatron searches is investigated. Statistical methods for the identification of PeVatrons are introduced, and realistic Monte-Carlo simulations of the response of the CTA observatory to the emission spectra from hadronic PeVatrons are performed. Based on simulations of a simplified model for the evolution for SNRs, the detection of a γ-ray signal from in average 9 Galactic PeVatron SNRs is expected to result from the scan of the Galactic plane with CTA after 10 h of exposure. CTA is also shown to have excellent potential to confirm these sources as PeVatrons in deep observations with O(100) hours of exposure per source. |
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| DOI: | doi:10.1016/j.astropartphys.2023.102850 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1016/j.astropartphys.2023.102850 |
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| | Volltext: https://www.sciencedirect.com/science/article/pii/S0927650523000361 |
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| | DOI: https://doi.org/10.1016/j.astropartphys.2023.102850 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | (Stars:) supernovae: general |
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| | Cosmic rays |
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| | Galactic PeVatrons |
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| | Gamma rays: general |
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| | Methods: data analysis |
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| | Methods: statistical |
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| K10plus-PPN: | 1860958273 |
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| Verknüpfungen: | → Zeitschrift |
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Sensitivity of the Cherenkov Telescope Array to spectral signatures of hadronic PeVatrons with application to Galactic Supernova Remnants / Acero, Fabio [VerfasserIn]; 10 April 2023 (Online-Ressource)
