0000000000309597

AUTHOR

V. V. Bogomolov

showing 4 related works from this author

Testing and Performance of UFFO Burst Alert & Trigger Telescope

2015

The Ultra-Fast Flash Observatory pathfinder (UFFO-p) is a new space mission dedicated to detect Gamma-Ray Bursts (GRBs) and rapidly follow their afterglows in order to provide early optical/ultraviolet measurements. A GRB location is determined in a few seconds by the UFFO Burst Alert & Trigger telescope (UBAT) employing the coded mask imaging technique and the detector combination of Yttrium Oxyorthosilicate (YSO) scintillating crystals and multi-anode photomultiplier tubes. The results of the laboratory tests of UBAT's functionality and performance are described in this article. The detector setting, the pixel-to-pixel response to X-rays of different energies, the imaging capability f…

High Energy Astrophysical Phenomena (astro-ph.HE)TelescopePhysics::Instrumentation and DetectorslawComputer scienceAstrophysics::High Energy Astrophysical PhenomenaAstrophysics::Instrumentation and Methods for AstrophysicsFOS: Physical sciencesAstronomyAstrophysics - High Energy Astrophysical PhenomenaAstrophysics - Instrumentation and Methods for AstrophysicsInstrumentation and Methods for Astrophysics (astro-ph.IM)law.inventionProceedings of Swift: 10 Years of Discovery — PoS(SWIFT 10)
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In-Situ Calibration of UFFO/Lomonosov for Observation of GRBs

2017

The UFFO/Lomonosov has been successfully launched into Sun synchronous orbit and is operational through tests and calibrations since its launch on Apr. 28, 2016. As a pathfinder of UFFO, it will be the first space instrument to use a fast slewing mirror which reduce the trigger latency of optical telescope, less than a second, to explore early time domain of GRB evolution. In this article, we will report in detail the first mission, UFFO/Lomonosov, for the rapid response to observe early photons from GRBs in orbit.

PhysicsPathfinderSun-synchronous orbitOrbit (dynamics)AstronomyIn situ calibrationGamma-ray burstRapid responseOptical telescopeProceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)
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Prompt and Follow-up Multi-wavelength Observations of the GRB 161017A

2018

This paper presents data on the simultaneous and complementary observations of the gamma-ray burst (GRB) GRB 161017A for optical, X-ray, and gamma wavelengths obtained by the Russian multi-messenger Lomonosov space observatory and supplemented by additional data from the Swift satellite as well as the ground-based MASTER Global Robotic Net and the 10 m Gran Telescopio Canarias. Multifrequency spectra of this very powerful explosion indicate that it originated at a distance of 10 billion light years from Earth. Here, we present the results of the prompt, early, and afterglow optical observations. The light curves and spectra suggest that the prompt optical and high-energy emissions occur in …

PhysicsResearch program010308 nuclear & particles physicsAstrophysics::High Energy Astrophysical PhenomenaLibrary scienceGamma-ray burst: generalAstronomy and AstrophysicsMulti wavelength01 natural sciencesgeneral [Gamma-ray burst]On boardSpace and Planetary Science0103 physical sciencesChristian ministry010303 astronomy & astrophysics
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Inverted-conical light guide for crosstalk reduction in tightly-packed scintillator matrix and MAPMT assembly

2015

Abstract In this paper we present the Inverted-Conical light guide designed for optical crosstalk reduction in the scintillator-MAPMT assemblies. The research was motivated by the 30% crosstalk observed in UFFO X-ray telescope , UBAT, during the preliminary calibration with MAPMTs of 64 2.88 × 2.88 mm2 pixels and identically gridded YSO crystal matrices. We began the study with the energy and crosstalk calibrations of the detector, then we constructed a GEANT4 simulation with the customized metallic film model as the MAPMT photocathode . The simulation reproduced more than 70% of the crosstalk and explained it as a consequence of the total reflection produced by the photocathode. The result…

PhysicsNuclear and High Energy PhysicsScintillationTotal internal reflectionOptical fiberPhysics::Instrumentation and Detectorsbusiness.industryDetectorScintillatorPhotocathodeParticle detectorlaw.inventionOpticslawScintillation counterOptoelectronicsbusinessInstrumentationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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