G. M. Cicciari
A5094123518- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Dark Matter and Cosmic Phenomena
- Ionosphere and magnetosphere dynamics
- Particle physics theoretical and experimental studies
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Solar and Space Plasma Dynamics
University of Palermo
2024-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Catania
2024-2025
Universitat de Barcelona
2024
Institut d'Estudis Espacials de Catalunya
2024
Institut de Physique Théorique
2024
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2024
CEA Paris-Saclay
2024
Centre National de la Recherche Scientifique
2024
Monochromatic gamma-ray signals constitute a potential smoking gun signature for annihilating or decaying dark matter particles that could relatively easily be distinguished from astrophysical instrumental backgrounds. We provide an updated assessment of the sensitivity Cherenkov Telescope Array (CTA) to such signals, based on observations Galactic centre region as well selected dwarf spheroidal galaxies. find current limits and detection prospects masses above 300 GeV will significantly...
The recurrent nova RS Ophiuchi (RS Oph) underwent a thermonuclear eruption in August 2021. In this event, Oph was detected by the High Energy Stereoscopic System ( H.E.S.S. ), Major Atmospheric Gamma Imaging Cherenkov (MAGIC), and first Large-Sized Telescope LST-1 ) of future Array Observatory (CTAO) at very-high gamma-ray energies above 100 This means that novae are new class very-high-energy (VHE) emitters. We report analysis observations with . constrain particle population causes...
Context. To date, three pulsars have been firmly detected by imaging atmospheric Cherenkov telescopes (IACTs). Two of them reached the TeV energy range, challenging models very high-energy (VHE) emission in pulsars. More precise observations are needed to better characterize pulsar at these energies. The LST-1 is prototype large-sized telescopes, which will be part Telescope Array Observatory (CTAO). Its improved performance over previous IACTs makes it well suited for studying Aims. In this...
Context . Imaging atmospheric Cherenkov telescopes (IACTs) are used to observe very high-energy photons from the ground. Gamma rays indirectly detected through light emitted by air showers they induce. The new generation of experiments, in particular Telescope Array Observatory (CTAO), sets ambitious goals for discoveries gamma-ray sources and precise measurements already discovered ones. To achieve these goals, both hardware data analysis must employ cuttingedge techniques. This also...
On October 9th, 2022, the brightest gamma-ray burst (GRB) since first GRB observation in late sixties was detected by Fermi-GBM and Swift-BAT telescopes (GRB 221009A). The outstanding characteristics of this triggered extensive follow-up observations source across all wavebands, including at very-high-energy (VHE) gamma rays with Large-Sized Telescope prototype (LST-1) upcoming Cherenkov Array Observatory (CTAO). In contribution, we present analysis results LST-1 campaign focusing on data...