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Creators/Authors contains: "Bister, Teresa"

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Anisotropies, large and small

https://doi.org/10.22323/1.444.0459

Farrar, Glennys R. ; Bister, Teresa ( August 2023 , PoS)

We report on several new results using anisotropies of UHECRs. We improve and extend the work of Ding, Globus and Farrar, who modeled the UHECR dipole assuming sources follow the dark matter distribution, accounting for deflections in the Galactic and extragalactic magnetic fields but using a simplified treatment of interactions during propagation. The work presented here employs an accurate and self-consistent treatment of the evolution of composition during propagation, allows for and explores the impact of “bias” in the relation between UHECR sources and the dark matter distribution, and investigates the possible generation of arrival-direction-dependent composition anisotropies. Limits on the source number density consistent with the observed anisotropies are derived for the case where UHECR sources follow the dark matter distribution, and compared to a homogeneous source distribution case.
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Adjustments to Model Predictions of Depth of Shower Maximum and Signals at Ground Level using Hybrid Events of the Pierre Auger Observatory

https://doi.org/10.22323/1.395.0310

Abreu, Pedro ; Aglietta, Marco ; Albury, Justin M. ; Allekotte, Ingomar ; Almela, Alejandro ; Alvarez-Muniz, Jaime ; Alves Batista, Rafael ; Anastasi, Gioacchino Alex ; Anchordoqui, Luis A. ; Andrada, Belén ; et al ( July 2021 , Proceedings, 37th International Cosmic Ray Conference (ICRC 2021))
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