Space experiments on-board of lomonosov mission to study gamma-ray bursts and UHECRS

Amelushkin, A. M.; Bogomolov, V. V.; Benghin, Victor; Garipov, G. K.; Gorbovskoy, E.; Grossan, B.; Климов, П. А.; Khrenov, B. A.; Lee, J.; Lipunov, V.; Na, G.; Panasyuk, M. I.; Park, I.H.; Petrov, V. L.; Smoot, George F.; Свертилов, С. И.; Shprits, Y. Y.; Vedenkin, N.; Yashin, I. V.

doi:10.1051/eas/1361088

Cited by 5 publications

(4 citation statements)

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“…The Lomonosov satellite operated by Moscow State University was launched to the heliosynchronous orbit on 28 April 2016, and deactivated on 14 January 2019. The mission allowed the simultaneous observation of GRBs in γ-ray, X-ray, and optical bands with three onboard payloads: directed in three axes GRB monitors (BDRG [45]); SHOK wide-field optical cameras; and the Ultra-Fast Flash Observatory (UFFO) payload [46,47].…”

Section: Lomonosovmentioning

confidence: 99%

Key Space and Ground Facilities in GRB Science

et al. 2022

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Gamma-ray bursts (GRBs) are short and intense flashes of γ-rays coming from deep space. GRBs were discovered more than a half century ago and now are observed across the whole electromagnetic spectrum from radio to very-high-energy gamma rays. They carry information about the powerful energy release during the final stage of stellar evolution, as well as properties of matter on the way to the observer. At present, space-based observatories detect on average approximately one GRB per day. In this review, we summarize key space and ground facilities that contribute to the GRB studies.

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Section: Lomonosovmentioning

confidence: 99%

Key Space and Ground Facilities in GRB Science

et al. 2022

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“…The GRB monitor BDRG/Lomonosov (Amelushkin et al 2013a(Amelushkin et al , 2013b) is designed to obtain temporal and spectral information about GRBs in the energy range of 10-3000 keV as well as to provide GRB triggering for the SHOK and UFFO instruments. The detection and localization of GRBs by the BDRG is based on the design of the KONUS instrument, which utilized three omni-directional detectors with axes set normal to each other (see Fig.…”

Section: Observations With Bdrg Gamma Ray Burst Monitormentioning

confidence: 99%

“…Thus, the scientific program for the Lomonosov space mission (Sadovnichii et al 2012;Amelushkin et al 2013a) includes a multi-wavelength GRB study across a range of time scales. In particular, a complex study of prompt emissions will be provided based on the immediate recording of optical data with a wide-field optical camera as well as the utilization of the UFFO's slewing mirror system to permit the rapid orientation of its UV/optical detectors to the GRB coordinates.…”

Section: Introductionmentioning

confidence: 99%

Wide-Field Gamma-Spectrometer BDRG: GRB Monitor On-Board the Lomonosov Mission

et al. 2017

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The study of GRB prompt emissions (PE) is one of the main goals of the Lomonosov space mission. The payloads of the GRB monitor (BDRG) with the widefield optical cameras (SHOK) and the ultra-fast flash observatory (UFFO) onboard the Lomonosov satellite are intended for the observation of GRBs, and in particular, their prompt emissions. The BDRG gamma-ray spectrometer is designed to obtain the temporal and spectral information of GRBs in the energy range of 10-3000 keV as well as to provide GRB triggers on several time scales (10 ms, 1 s and 20 s) for ground and space telescopes, including the UFFO and SHOK. The BDRG instrument consists of three identical detector boxes with axes shifted by 90 • from each other. This configuration allows us to localize a GRB source in the sky with an accuracy of ∼ 2 • .Each BDRG box contains a phoswich NaI(Tl)/CsI(Tl) scintillator detector. A thick CsI(Tl) crystal in size of ∅130 × 17 mm is placed underneath the NaI(Tl) as an active shield in the soft energy range and as the main detector in the hard energy range. The ratio of the CsI(Tl) to NaI(Tl) event rates at varying energies can be employed as an independent metric to distinguish legitimate GRB signals from false positives originating from electrons in near-Earth vicinities.The data from three detectors are collected in a BA BDRG information unit, which generates a GRB trigger and a set of data frames in output format. The scientific data output is ∼ 500 Mb per day, including ∼ 180 Mb of continuous data for events with durations in excess of 100 ms for 16 channels in each detector, detailed energy spectra, and sets of frames with ∼ 5 Mb of detailed information for each burst-like event. A number of pre-flight tests including those for the trigger algorithm and calibration were carried out to confirm the reliability of the BDRG for operation in space.

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“…The mission payload includes a complex of instruments developed for GRB prompt emission detection in all kinds of radiation [1] [2]. It consists of gamma-ray monitor BDRG, wide field optical cameras SHOK and UFFO instrument consisting of X-ray imaging telescope UBAT and UV slewing mirror telescope SMT.…”

Section: Introductionmentioning

confidence: 99%

Results of the Multimessenger GRB Observations in the Lomonosov Mission

Bogomolov¹,

Panasyuk²,

Свертилов³

et al. 2017

Proceedings of 35th International Cosmic Ray Conference — PoS(ICRC2017)

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GRB study is one of the main goals of the Lomonosov space mission. Multimessenger GRB observation is the only way of progress achievement in their study. The Lomonosov satellite is the first space mission in which the multi-wave length observations of GRBs are realized in real time without necessity of optical instrument re-orientation on GRB monitor trigger. The mission payload includes the GRB monitor BDRG, wide -field optical cameras SHOK and UFFO instrument consisting of X-ray imaging telescope UBAT and UV slewing mirror telescope SMT. Two wide field cameras are placed in such a way that their fields of view (FOV) are overlapped by the GRB monitor detector FOVs. This allows the simultaneous GRB observations in gammas and optics in all-time scale of event evolution including obtaining optical light curves of prompt emission as well as of precursors. The real time data transfer to the GCN for detected GRB is realized as well as operative control of BDRG data on triggers from ground based facilities including neutrino and gravitation wave detectors. The GRB catalogue is presented in this report, also those events, for which information was obtained in different bands, are discussed in details.35th International Cosmic Ray Conference -ICRC2017 10-20 July, 2017 Bexco, Busan, Korea 1 Speaker PoS(ICRC2017)669Results of Multimessenger GRB Observations in the Lomonosov Mission 2 IntroductionMulti-wavelength GRB observation is one of the main goals of the Lomonosov space mission launched on 28.04.2016 to the solar synchronous orbit. The mission payload includes a complex of instruments developed for GRB prompt emission detection in all kinds of radiation [1] [2]. It consists of gamma-ray monitor BDRG, wide field optical cameras SHOK and UFFO instrument consisting of X-ray imaging telescope UBAT and UV slewing mirror telescope SMT. In all of the experiments before Lomonosov mission the pointing of optical and soft x-ray instruments after the trigger produced by gamma-telescope is used for multi-wavelength GRB observations. Several methods are used to provide the observation on early phase of GRB sourсe activity. Fast transfer of the message with GRB coordinates to the ground telescopes on the trigger, produced by space instruments was realized by Fermi/GBM, Swift/BAT and some other experiments [3]. Fast pointing of all instruments after GRB trigger by the rotation of the satellite was realized in Swift mission. The time of the satellite reorientation about several tens of seconds allowed one to study GRB afterglows on early stages [3], but the beginning phase of the GRB could not be observed by this method. The Lomonosov satellite is the first space mission in which the early optical observations of GRBs are realized without optical instrument reorientation on GRB monitor trigger by real time recording of the sequence of images from wide-FOV cameras. The real time GRB data transfer to the ground via GlobalStar modem is also realized in Lomonosov mission. Joint analysis of the satellite data and the data of ground robo...

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Space experiments on-board of lomonosov mission to study gamma-ray bursts and UHECRS

Cited by 5 publications

References 3 publications

Key Space and Ground Facilities in GRB Science

Key Space and Ground Facilities in GRB Science

Wide-Field Gamma-Spectrometer BDRG: GRB Monitor On-Board the Lomonosov Mission

Results of the Multimessenger GRB Observations in the Lomonosov Mission

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