A5068124127- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Dark Matter and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Radio Astronomy Observations and Technology
- Neutrino Physics Research
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Pulsars and Gravitational Waves Research
- Particle Detector Development and Performance
- History and Developments in Astronomy
- Earthquake Detection and Analysis
- Impact of Light on Environment and Health
- Radioactive Decay and Measurement Techniques
- Galaxies: Formation, Evolution, Phenomena
- Scientific Research and Discoveries
- Experimental and Theoretical Physics Studies
- Solar and Space Plasma Dynamics
- Ionosphere and magnetosphere dynamics
- Economic, financial, and policy analysis
- Seismology and Earthquake Studies
- Particle Accelerators and Free-Electron Lasers
- CCD and CMOS Imaging Sensors
- Scientific Computing and Data Management
- Radiation Detection and Scintillator Technologies
Laboratoire de Physique Nucléaire et de Hautes Énergies
2019-2024
Sorbonne Université
2019-2024
Centre National de la Recherche Scientifique
2019-2024
Université Paris Cité
2019-2024
Université Paris Sciences et Lettres
2024
Institut National de Physique Nucléaire et de Physique des Particules
2024
Laboratoire Univers et Théories
2021
Janssen (France)
2021
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2021
Friedrich-Alexander-Universität Erlangen-Nürnberg
2021
Cosmological and astrophysical observations suggest that 85% of the total matter Universe is made Dark Matter (DM). However, its nature remains one most challenging fundamental open questions particle physics. Assuming DM, this exotic form cannot consist Standard Model (SM) particles. Many models have been developed to attempt unraveling DM such as Weakly Interacting Massive Particles (WIMPs), favored candidates. WIMP annihilations decay could produce SM particles which in turn hadronize...
Aims: The aim of the present study is to explore how disentangle energy-dependent time delays due a possible Lorentz invariance violation (LIV) at Planck scale from intrinsic expected in standard blazar flares. Methods: We first characterise BL Lacs and Flat Spectrum Radio Quasars one-zone time-dependent synchrotron self-Compton or external Compton models, during flares produced by particle acceleration cooling processes. simulate families with both LIV-induced delays. Discrimination between...
Some Quantum Gravity (QG) theories, aiming at unifying general relativity and quantum mechanics, predict an energy-dependent modified dispersion relation for photons in vacuum leading to a Violation of Lorentz Invariance (LIV). One way test these theories is monitor TeV time-of-flight emitted by distant, highly energetic variable astrophysical sources such as flaring active galactic nuclei. Only one time-lag detection was reported so far. We have recently shown however that significant...
Gamma-Ray bursts, flaring active galactic nuclei and pulsars are distant energetic astrophysical sources, detected up to tens of TeV with Imaging Atmospheric Cherenkov Telescopes (IACTs). Due their high variability, they the most suitable sources for energy-dependent time-delay searches related Lorentz Invariance Violation (LIV) predicted by some Quantum Gravity (QG) models. However, these studies require large datasets. A working group between three major IACTs ground experiments -...