Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 73: Cosmic Ray 4
T 73.4: Vortrag
Mittwoch, 23. März 2022, 17:00–17:15, T-H32
Perception of arrival direction maps of cosmic rays — •Edyvania Emily Pereira Martins1, Markus Roth2, and Darko Veberič2 — 1Institut für Experimentelle Teilchenphysik - Karlsruher Instituts für Technologie, Karlsruhe, Germany — 2Institut für Astroteilchenphysik - Karlsruher Instituts für Technologie, Karlsruhe, Germany
The processing of visual information in the human brain is guided by identifying colors and patterns formed by same-color areas. In cosmic-ray research, two main interests are to relate detected events to their sources and to identify excess regions in the sky. In this pursuit, maps of arrival directions are a commonly used tool. Depending on the choice of the smoothing applied to the maps, the plotting can render different locations of the perceived flux-excess regions on the map, represented in a different color to the flux-deficit regions. In addition, the most commonly used smoothing fabricates structures that are not real nor significant, and can lead to misinterpretation. An alternative to the standard, top-hat smoothing is presented, which facilitates the interpretation of data.