IAP - High-Energy Universe Group Seminar / WS2025/26 (Anatoli Fedynitch - Treasure Maps of CR) (1/18)

Thursday Sep 4, 2025, 11:00 AM → 12:30 PM Europe/Berlin

206 (KIT CN Bld 425)

WS 2025/26 

Anatoli Fedynitch

Institute of Physics, Academica Sinica, Taiwan  

"Treasure Maps for Detections of Extreme Energy Cosmic Rays and recent progress in TA SD analysis"

 

Abstract: A primary goal of the "Treasure Maps" approach is to provide a methodology for distinguishing between steady and transient, or highly variable, sources. Using recent Galactic magnetic field models, we calculate sky maps to identify the most promising directions for detecting Extreme Energy Cosmic Rays (EECR) doublets. These events are close in arrival time and direction. On this basis, we predict the incidence of doublets as a function of the nature of the source host galaxy. Based on the asymmetry in the distribution of time delays, we demonstrate that the observation of doublets can distinguish between source models. In particular, the Telescope Array hotspot may exhibit temporal variability, as it is located in a "magnetic window" of small time delays. In the second part of my talk, I will report on the current progress in redesigning the Telescope Arrays Surface Detector data analysis chain, focusing on the reconstruction performance with Deep Neural Networks and the Bayesian inference of the energy spectrum.

 

 

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