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  MAGIC observations of HESS J1809-193 using the Very Large Zenith Angle technique at energies above TeV

The MAGIC Collaboration, Zarić, D., Green, D., Strzys, M., Vovk, I., Acciari, V., et al. (2022). MAGIC observations of HESS J1809-193 using the Very Large Zenith Angle technique at energies above TeV. Proceedings of Science, 395, 818.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-B58F-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000C-B590-4
Genre: Conference Paper

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The MAGIC Collaboration1, Author
Zarić, D.1, Author
Green, D.1, Author
Strzys, M.1, Author
Vovk, I.1, Author
Acciari, V.A.1, Author
et al.1, Author
Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Free keywords: MAGIC
 Abstract: The origin of Galactic Cosmic rays (GCRs), whose spectrum extends to PeV energies, is one of the longest-standing problems in astroparticle physics. One of the main sources of GCRs are regarded to be Supernova remnants (SNRs). While SNRs are known to accelerate protons, so far there is no evidence that SNRs can accelerate CRs to PeV energies. Providing that ~10% of the parent Cosmic ray energy is converted to gamma rays, the gamma-ray spectrum extending up to ~100 TeV would be a signature of a so-called Galactic PeVatron, an object responsible for the production of protons up to the knee of the Cosmic ray spectrum. The current multi-wavelength data indicate that HESS J1809-193 is one of the most promising Galactic PeVatron candidates. So far, no firm identification on the source nature has been established as there are several possible counterparts at lower energies; one of them being SNR G11.0−0.0. We report here the results of an observational campaign performed by the MAGIC telescopes on HESS J1809-193 since 2019 in the very-high-energy gamma-ray domain (E>100 GeV). The data were obtained with the Very Large Zenith Angle (VLZA) technique, which increased the collection area significantly to about one square kilometer. We used ~60 hours of collected VLZA data to explore the spectrum and the morphology of the source at energies above several TeV.

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 Dates: 2022
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: Other: MPP-2021-327
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-327
DOI: 10.22323/1.395.0818
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Title: Proceedings of Science
  Abbreviation : PoS
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 395 Sequence Number: - Start / End Page: 818 Identifier: -

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Title: ICRC2021
Source Genre: Proceedings
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Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 818 Identifier: -