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  Analysis of the W 44 Supernova Remnant and its surroundings with Fermi-LAT and MAGIC

Di Tria, R., Di Venere, L., Giordano, F., Green, D., Hahn, A., Pantaleo, F., et al. (2021). Analysis of the W 44 Supernova Remnant and its surroundings with Fermi-LAT and MAGIC. Proceedings of Science, 395, 642.

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Datensatz-Permalink: https://hdl.handle.net/21.11116/0000-000A-1B76-4 Versions-Permalink: https://hdl.handle.net/21.11116/0000-000A-1B77-3
Genre: Konferenzbeitrag

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 Urheber:
Di Tria, R.1, Autor
Di Venere, L.1, Autor
Giordano, F.1, Autor
Green, D.1, Autor
Hahn, A.1, Autor
Pantaleo, F.R.1, Autor
et al.1, Autor
Affiliations:
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Schlagwörter: MAGIC
 Zusammenfassung: The well-known supernova remnant (SNR) W 44 is observed in high-energy gamma rays and widely studied to investigate cosmic ray (CR) acceleration. Several analyses of the W 44 surroundings showed the presence of gamma-ray emission offset from the radio SNR shell. This emission is thought to originate from escaped high-energy CRs. We present a detailed analysis of the W 44 region as seen by Fermi-LAT, focusing on the spatial and spectral characteristics of both W44 SNR and its surroundings. The spatial analysis was limited to energies above 1 GeV in order to exploit the improved angular resolution of the instrument, deriving a detailed description of the region morphology. Observations of the north-western region of W 44, also known as SRC-1 from previous works, were conducted with the MAGIC telescopes in the very high-energy gamma-ray band. We analysed MAGIC data exploiting the spatial information derived with the Fermi-LAT analysis at GeV energies. Here we show the results of both analyses and the combined Fermi-LAT and MAGIC spectra, thus obtaining constraining information on the diffusion of the escaped CRs.

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 Datum: 2021
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: Anderer: MPP-2021-324
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-324
DOI: 10.22323/1.395.0642
 Art des Abschluß: -

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Titel: Proceedings of Science
  Kurztitel : PoS
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 395 Artikelnummer: - Start- / Endseite: 642 Identifikator: -

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Titel: ICRC2021
Genre der Quelle: Konferenzband
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 642 Identifikator: -