AtmoHEAD 2026

Session

Influence of atmosphere on measurements of present and future CR and Gamma-Ray esperiments

30 Jul 2026, 09:00

Palacky University Olomouc

8. Air shower simulations in CORSIKA 8

Radek Privara (Palacky University Olomouc)

30/07/2026, 09:00

Air shower simulations represent a critical component of data analysis in ground-based, high-energy astroparticle experiments, for which the Fortran-based CORSIKA 7 framework has been widely used. This contribution will present the development status and features of CORSIKA 8, a complete redesign of the simulation framework in the modern C++ language. Special focus will be placed on the...

18. Impact of Atmospheric Molecular Absorption and Realistic Cloud Conditions on CTAO-North Performance

Georgios Voutsinas (University of Geneva)

30/07/2026, 09:30

The performance of Imaging Atmospheric Cherenkov Telescopes (IACTs), such as the Cherenkov Telescope Array Observatory (CTAO), depends critically on atmospheric conditions, which govern both air-shower development and Cherenkov light transmission. In this contribution, we focus on the latter. In the first part, we investigate seasonal and Stratosphere to Troposphere exchange-driven variations...

11. Gamma-Ray Observations of the BBH Merger Candidate S241125n with MAGIC and LST-1 under Variable Atmospheric Conditions

Mario Pecimotika (Department of Polytechnics, Dr. Franjo Tuđman Defense and Security University, Zagreb, Croatia)

30/07/2026, 10:00

We report on gamma-ray observations of the binary black hole (BBH) merger candidate S241125n, detected by the LIGO-Virgo-KAGRA Collaboration during the O4b observing run. Follow-up observations were performed with the MAGIC telescopes and the Large-Sized Telescope prototype (LST-1) of the Cherenkov Telescope Array Observatory. S241125n is of particular interest due to its temporal and spatial...

9. Impact of Calima on Atmospheric Transmission and the Performance of the CTAO LST System at ORM, La Palma

Dario Hrupec (Department of Physics Josip Juraj Strossmayer University of Osijek)

30/07/2026, 10:30

The next generation of imaging atmospheric Cherenkov telescopes, in particular the four LSTs (Large-Sized Telescopes) of the CTAO (Cherenkov Telescope Array Observatory), will provide substantially improved sensitivity compared to previous instruments. This increased sensitivity also makes precise atmospheric characterization more important, since even moderate atmospheric disturbances can...