V. Sahakian
A5089642178- Astrophysics and Cosmic Phenomena
- Gamma-ray bursts and supernovae
- Astrophysical Phenomena and Observations
- Dark Matter and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Neutrino Physics Research
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Particle physics theoretical and experimental studies
- Particle Accelerators and Free-Electron Lasers
- Galaxies: Formation, Evolution, Phenomena
- Astronomical Observations and Instrumentation
- Gyrotron and Vacuum Electronics Research
- Terahertz technology and applications
- Laser Design and Applications
- Astrophysics and Star Formation Studies
- Relativity and Gravitational Theory
- Nuclear Physics and Applications
- Economic, financial, and policy analysis
- Scientific Research and Discoveries
- Atomic and Subatomic Physics Research
- Infrared Target Detection Methodologies
- Astro and Planetary Science
- Calibration and Measurement Techniques
A. Alikhanyan National Laboratory
2004-2024
Institut de Recherche sur les Lois Fondamentales de l'Univers
2021-2023
Université Paris-Saclay
2021-2023
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2005-2023
ETH Zurich
2023
University of Würzburg
2023
Max Planck Institute for Physics
2023
École Polytechnique
2023
Laboratoire Leprince-Ringuet
2023
Linnaeus University
2023
The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (∼45σ) energies greater than 160 GeV, using the H.E.S.S. stereoscopic array of imaging air-Cherenkov telescopes in Namibia.A strong signal is found each data sets corresponding to dark periods July and October, 2002, June-September, 2003.The observed flux VHE gamma rays shows variability on time scales months, days, hours.The monthly-averaged integral above 300 GeV varies between 10%...
The serendipitous discovery of an unidentified extended TeVgamma-ray source close to the galactic plane named HESS J1303-631 at a significance 21 standard deviations is reported. observations were performed between February and June 2004 with H.E.S.S. stereoscopic system Cherenkov telescopes in Namibia. was discovered roughly 0.6 deg north binary PSR B1259-63/SS 2883, target object initial observation campaign which also detected TeV energies same field view. width assumed intrinsic Gaussian...
Observations of the shell-type supernova remnant SN1006 have been carried out with HESS system Cherenkov telescopes during 2003 (18.2 h two operating telescopes) and 2004 (6.3 all four telescopes).No evidence for TeV γ-ray emission from any compact or extended region associated is seen resulting upper limits at 99.9% confidence level are up to a factor 10 lower than previously-published fluxes CANGAROO.For its current epoch evolution we define number important global parameters.Upper on...
The evidence for multi-messenger photon and neutrino emission from the blazar TXS 0506+056 has demonstrated importance of realtime follow-up events by various ground- space-based facilities. effort H.E.S.S. other experiments in coordinating observations to obtain quasi-simultaneous multiwavelength flux spectrum measurements been critical measuring chance coincidence with high-energy event IC-170922A constraining theoretical models. For about a decade, transient program included search...