B. A. Hess
A5027051269- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Statistical Methods and Bayesian Inference
- Pulsars and Gravitational Waves Research
- Particle Accelerators and Free-Electron Lasers
- Pickering emulsions and particle stabilization
- Radio Astronomy Observations and Technology
- Advanced Measurement and Metrology Techniques
- Molten salt chemistry and electrochemical processes
- Material Dynamics and Properties
- Nuclear Physics and Applications
- Medical Imaging Techniques and Applications
- Advanced Materials Characterization Techniques
- Electrostatics and Colloid Interactions
- Material Properties and Applications
- Advanced X-ray Imaging Techniques
- Cosmology and Gravitation Theories
- Crystallography and Radiation Phenomena
University of Tübingen
2013-2025
A. Alikhanyan National Laboratory
2013-2017
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2012-2017
Variable Energy Cyclotron Centre
2013-2014
European Organization for Nuclear Research
2012
Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons positrons (CRe) at very high energies probe local accelerators provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement the spectrum CRe candidate events from 0.3 40 TeV with High Energy Stereoscopic System, covering 2 orders magnitude in energy reaching proton rejection power better than 10^{4}. The measured is...
The colliding-wind binary system $\eta$ Carinae has been identified as a source of high-energy (HE, below $\sim$100\,GeV) and very-high-energy (VHE, above gamma rays in the last decade, making it unique among these systems. With its eccentric 5.5-year-long orbit, periastron passage, during which stars are separated by only $1-2$\,au, is an intriguing time interval to probe particle acceleration processes within system. In this work, we report on extensive VHE observation campaign that for...
The colliding-wind binary system η Carinae has been identified as a source of high-energy (HE, below ∼100,GeV) and very (VHE, above gamma rays in the last decade, making it unique among these systems. With its eccentric 5.5-year-long orbit, periastron passage, during which stars are separated by only $1-2$,au, is an intriguing time interval to probe particle acceleration processes within system. In this work, we report on extensive VHE observation campaign that for first covers full passage...
FlashCam is an advanced camera developed for Imaging Atmospheric Cherenkov Telescopes (IACTs), aiming to significantly enhance ground-based astronomical observations. has delivered exceptional performance within the High Energy Stereoscopic System (H.E.S.S.) over 5 years. Its design been thoroughly studied using laboratory data as well accurate simulations, all of which show good agreement between simulated and observed results. Minor adjustments are being made in preparation its integration...
The results of the first extragalactic gamma-ray survey by High Energy Stereoscopic System (H.E.S.S.) are presented. comprises 2720 hours very high-energy observations sky, recorded with H.E.S.S. from 2004 up to end 2012. These data have been re-analysed using a common consistent set up-to-date calibration and analysis tools. From this analysis, list 23 detected objects, predominantly blazars, was obtained. This catalogue assessed in terms source class populations that it contains. level...
PSR B1259–63/LS 2883 is a gamma-ray binary system that hosts pulsar in an eccentric orbit, with 3.4 yr period, around O9.5Ve star (LS 2883). At orbital phases close to periastron passages, the radiates bright and variable non-thermal emission, for which temporal spectral properties of this emission are, now, poorly understood. In regard, very high-energy (VHE) especially useful study constrain radiation processes particle acceleration system. We report on extensive VHE observation campaign...
Abstract Soft protons populating the space environment have affected performance of X-ray detectors on board Chandra and XMM-Newton, they pose a threat for future high energy astrophysics missions with larger aperture, such as ATHENA. In this paper, we aim to predict soft proton induced ATHENA backgrounds from modelling orbital flux obtained using eROSITA SRG. To end, analysed background measured by help simulations defined range values potential count-rate quiet-time focused through mirror...
Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons positrons (CRe) at very high energies probe local accelerators provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement the spectrum CRe candidate events from 0.3 40 TeV with High Energy Stereoscopic System (H.E.S.S.), covering two orders magnitude in energy reaching proton rejection power better than $10^{4}$....
We study the diffusive behavior of linear trimer particles via numerical calculations. First, we utilize hydrodynamic bead-shell calculations to compute microscopic diffusion coefficients for different particle aspect ratios. These values are then used obtain continuous empirical formulas said coefficients. As an application example formulas, perform Brownian dynamics simulations monolayers consisting a surrounded by colloidal spheres. Here, corresponding long-time trimer. By comparing our...
Abstract The Tarantula Nebula in the Large Magellanic Cloud is known for its high star formation activity. At center lies young massive cluster R136, providing a significant amount of energy that makes nebula shine so brightly at many wavelengths. Recently, clusters have been suggested to also efficiently produce very high-energy cosmic rays, potentially beyond PeV energies. Here, we report detection very-high-energy γ -ray emission from direction R136 with High Energy Stereoscopic System,...
Jets from hard scattering processes allow to study the properties of strongly interacting matter produced in ultra-relativistic heavy-ion collisions. The hot and dense medium created such collisions is expected cause energy loss hard-scattered partons via elastic gluon radiation. Eventually, these modify parton fragmentation. We report measurements charged jets lead-lead (Pb-Pb) proton-lead (p-Pb) at J= 2.76 TeV 5.02 TeV. To estimate cold nuclear effects, jet production p-Pb studied for...