Vitalii Sliusar
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View article: Limits on Atmospheric Broadening of the HBT Peak Using High-Speed Single-Photon Detectors
Limits on Atmospheric Broadening of the HBT Peak Using High-Speed Single-Photon Detectors Open
View article: QUASAR: Achieving Picosecond-Scale Time Synchronization in Distributed Optical and Cherenkov Telescopes with White Rabbit
QUASAR: Achieving Picosecond-Scale Time Synchronization in Distributed Optical and Cherenkov Telescopes with White Rabbit Open
View article: The QUASAR project: reaching 10 microarcsec in the optical to resolve accretion disks
The QUASAR project: reaching 10 microarcsec in the optical to resolve accretion disks Open
View article: QUASAR: Development of 20 picosecond resolution intensity interferometry
QUASAR: Development of 20 picosecond resolution intensity interferometry Open
View article: The SST-1M stereoscopic system
The SST-1M stereoscopic system Open
View article: Calibration and Performance Validation of the SST-1M Telescopes Using Crab Nebula Observations
Calibration and Performance Validation of the SST-1M Telescopes Using Crab Nebula Observations Open
View article: SST-1M observation of Markarian 421
SST-1M observation of Markarian 421 Open
View article: Operation of the SST-1M Cherenkov telescope gamma ray stereoscopic system
Operation of the SST-1M Cherenkov telescope gamma ray stereoscopic system Open
View article: Stereo performance of SST-1M at different altitudes
Stereo performance of SST-1M at different altitudes Open
View article: Stereo observations of CTA 1 with SST-1M
Stereo observations of CTA 1 with SST-1M Open
View article: Observation of VER 2019+368 with the SST-1M stereoscopic system
Observation of VER 2019+368 with the SST-1M stereoscopic system Open
View article: Hybrid concept of detection for a wide-field gamma-ray observatory using Cherenkov telescopes
Hybrid concept of detection for a wide-field gamma-ray observatory using Cherenkov telescopes Open
View article: Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect
Probing Stellar Kinematics with the Time-Asymmetric Hanbury Brown and Twiss Effect Open
Intensity interferometry (II) offers a powerful means to observe stellar objects with a high resolution. In this work, we demonstrate that II can also probe internal stellar kinematics by revealing a time-asymmetric Hanbury Brown and Twiss…
View article: The SST-1M stereoscopic system
The SST-1M stereoscopic system Open
The Single-Mirror Small-Size Telescope (SST-1M) is an Imaging Atmospheric Cherenkov Telescope designed for detecting very high-energy gamma rays. With a compact design achieved through the adoption of silicon-photomultiplier pixels and a l…
View article: Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
Observation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude Open
The Single-Mirror Small-Size Telescope (SST-1M) stereoscopic system is composed of two Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to deliver optimal performance for gamma-ray astronomy in the multi-TeV energy range. It featu…
View article: The SST-1M imaging atmospheric Cherenkov telescope for gamma-ray astrophysics
The SST-1M imaging atmospheric Cherenkov telescope for gamma-ray astrophysics Open
The SST-1M is a Small-Sized Telescope (SST) designed to provide a cost-effective and high-performance solution for gamma-ray astrophysics, particularly for energies beyond a few TeV. The goal is to integrate this telescope into an array of…
View article: Rapid variability of Markarian 421 during extreme flaring as seen through the eyes of <i>XMM–Newton</i>
Rapid variability of Markarian 421 during extreme flaring as seen through the eyes of <i>XMM–Newton</i> Open
By studying the variability of blazars across the electromagnetic spectrum, it is possible to resolve the underlying processes responsible for rapid flux increases, so-called flares. We report on an extremely bright X-ray flare in the high…
View article: Software architecture and development approach for the ASTRI Mini-Array project at the Teide Observatory
Software architecture and development approach for the ASTRI Mini-Array project at the Teide Observatory Open
The Astrophysics with Italian Replicating Technology Mirrors (ASTRI) Mini-Array is an international collaboration led by the Italian National Institute for Astrophysics (INAF) and devoted to imaging atmospheric Cherenkov light for very-hig…
View article: Analysis of commissioning data from SST-1M : A Prototype of Single-Mirror Small Size Telescope
Analysis of commissioning data from SST-1M : A Prototype of Single-Mirror Small Size Telescope Open
SST-1M is a prototype of a single-mirror Small Size Telescope developed by a\nconsortium of institutes from Poland, Switzerland and the Czech Republic. With\na wide field of view of 9 degrees, SST-1Ms are designed to detect gamma-rays in\n…
View article: Status of the SST Camera for the Cherenkov Telescope Array
Status of the SST Camera for the Cherenkov Telescope Array Open
The Cherenkov Telescope Array will be the next generation ground-based gamma ray observatory in the energy range from few tens of GeV to hundreds of TeV. It will be built on two sites, one for each hemisphere, to cover the entire sky. The …
View article: Resolving accretion disks with quantum optics
Resolving accretion disks with quantum optics Open
Accretion disks around compact objects have been known for about 60 years however their study has been limited because they are unresolved sources in the optical/ultraviolet and X-rays, where they emit. Hanbury Brown & Twiss discovered int…
View article: Radio-gamma delay as signature of adiabatic expansion in blazar jets
Radio-gamma delay as signature of adiabatic expansion in blazar jets Open
Geometrical constraints, specifically the alignment of relativistic jet with the observer’s line of sight, make blazars the rarest and most powerful active galactic nuclei. They show extreme variability on different time-scales depending o…
View article: Mono and stereo performance of the two SST-1M telescope prototypes
Mono and stereo performance of the two SST-1M telescope prototypes Open
The Single-Mirror Small-Sized Telescope, or SST-1M, was originally developed as a prototype of a small-sized telescope for CTA, designed to form an array for observations of gamma-ray-induced atmospheric showers for energies above 3 TeV. A…
View article: Mono and stereo performance of the two SST-1M telescope prototypes
Mono and stereo performance of the two SST-1M telescope prototypes Open
The Single-Mirror Small-Sized Telescope, or SST-1M, was originally developed as a prototype of a small-sized telescope for CTA, designed to form an array for observations of gamma-ray-induced atmospheric showers for energies above 3 TeV. A…
View article: Signature of adiabatic expansion in the Radio-$\gamma$-ray response of blazars
Signature of adiabatic expansion in the Radio-$\gamma$-ray response of blazars Open
Long-term campaigns for several blazars show that the radio emission occurs with a significant delay with respect to the $\gamma$-ray band, with timescales ranging from weeks to years. This observational evidence has long been a matter of …
View article: Rapid X-ray variability in Mkn 421 during a multiwavelength campaign
Rapid X-ray variability in Mkn 421 during a multiwavelength campaign Open
The study of short-term variability properties in AGN jets has the potential to shed light on their particle acceleration and emission mechanisms. We report results from a 4-d coordinated multiwavelength campaign on the highly peaked blaza…
View article: Multi-wavelength study of Mrk 421 during a TeV flare
Multi-wavelength study of Mrk 421 during a TeV flare Open
The blazar Mrk 421 shows frequent, short flares in the TeV energy regime. Due to the fast nature of such episodes, we often fail to obtain sufficient simultaneous information about flux variations in several energy bands. To overcome this …
View article: Radio-<i>γ</i>-ray response in blazars as a signature of adiabatic blob expansion
Radio-<i>γ</i>-ray response in blazars as a signature of adiabatic blob expansion Open
Context. Multi-wavelength light curves in long-term campaigns show that, for several blazars, the radio emission occurs with a significant delay with respect to the γ -ray band, with timescales ranging from weeks to years. Such observation…
View article: GeV-radio correlation in Markarian 421
GeV-radio correlation in Markarian 421 Open
Markarian 421 (Mrk 421) is a high-synchrotron-peaked blazar showing relentless variability across the electromagnetic spectrum from radio to gamma-rays. We use over 7-years of radio and GeV observations to study the correlation and connect…
View article: FACT - Highlights from more than Eight Years of Unbiased TeV Monitoring
FACT - Highlights from more than Eight Years of Unbiased TeV Monitoring Open
The First G-APD Cherenkov Telescope (FACT) has been monitoring blazars at TeV energies for more than eight years. Using solid state photo sensors and performing robotic operations results in a maximized duty cycle of the instrument and min…