31 Result(s)
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Article
The First Detection of an Orphan Burst at the Rise Phase
We report on the earliest detection of the optical transient MASTER OT J123248.62-012924.5 coincident within the error box with the optical and X-ray transient AT2021lfa/ZTF21aayokph. In our images the brightn...
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Article
Monitoring of Natural and Technogenic Space Hazards: Results of the Lomonosov Mission and Universat-SOCRAT Project
The results of experiments onboard the Lomonosov satellite on observing natural and technogenic space hazards including electromagnetic transients and space debris are discussed. A new space project Universat-SOC...
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Article
Open AccessWide-Field Gamma-Spectrometer BDRG: GRB Monitor On-Board the Lomonosov Mission
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 wide-field optical cameras (SHOK) and the ultra-fast flash observ...
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Article
SHOK—The First Russian Wide-Field Optical Camera in Space
Onboard the spacecraft Lomonosov is established two fast, fixed, very wide-field cameras SHOK. The main goal of this experiment is the observation of GRB optical emission before, synchronously, and after the g...
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Article
Open Access“Lomonosov” Satellite—Space Observatory to Study Extreme Phenomena in Space
The “Lomonosov” space project is lead by Lomonosov Moscow State University in collaboration with the following key partners: Joint Institute for Nuclear Research, Russia, University of California, Los Angeles ...
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Article
Erratum to: “Space Experiments aboard the Lomonosov MSU Satellite”
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Article
The BDRG and SHOK instruments for studying gamma-ray burst prompt emission onboard the Lomonosov spacecraft
One of the goals of the Lomonosov satellite designed by scientists of Moscow State University is to study the prompt emission of cosmic gamma-ray bursts. This paper describes the gamma-ray burst monitor in the ga...
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Article
Space experiments aboard the Lomonosov MSU satellite
At present, the Institute of Nuclear Physics of Moscow State University, in cooperation with other organizations, is preparing space experiments onboard the Lomonosov satellite. The main goal of this mission is t...
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Article
Photometric observations of the supernova 2009nr
We present the results of our UBVRI CCD photometry for the second brightest supernova of 2009, SN 2009nr, discovered during a sky survey with the telescopes of the MASTER robotic network. Its light and color curv...
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Article
“Pure” supernovae and accelerated expansion of the Universe
A special class of type Ia supernovae that is not subject to ordinary and additional intragalactic gray absorption and chemical evolution has been identified. Analysis of the Hubble diagrams constructed for th...
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Article
Discovery of an optical flare from GRB 060926 by the MASTER robotic telescope: Possible formation of a marginally rotating black hole
The MASTER robotic telescope has obtained the first optical images of GRB 060926. We have discovered an optical flare from GRB 060926, a recurrent brightening that closely follows its behavior in the X-ray ran...
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Article
The Master Mobile Astronomical System. Optical Observations of Gamma-Ray Bursts
The operating principles of the telescope-robot system MASTER (Mobile Astronomical System of Telescopes-Robots, http://observ.pereplet.ru), designed to search for fast transient phenomena in the optical range,...
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Article
Why do we see so few black holes in massive binaries?
We offer a simple explanation for the small number of black holes observed in pairs with massive stars. In detached massive binaries, spherically symmetric accretion takes place. This accretion could result in...
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Article
Stellar Evolution and the Cosmologial Supernovae Rates
We present the results of the population synthesis of the population ofthe supernovae progenitors. Both single and double degenerate progenitorsof SN Ia are considered. We compute the cosmic rate histories for...
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Article
On the Problem of the Super Reason in Astrophysics
The Giant Silence of the Universe or the absence of "Space Miracles" is in obvious contradiction with the rapid evolution of our civilization. The most striking fact is that both these phenomena, if taken sepa...
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Article
The Death of Compact Binary Stars
Merging rates for compact binaries (double neutron stars or black holes) are calculated based on modern concepts of binary star evolution. It is found that the first laser interferometers, with rms sensitiviti...
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Article
Tests for coalescing binary neutron stars as cosmological origin of gamma-ray bursts
Theoretical logN-logS distributions and (V/V max) tests of gamma-ray bursts in the model of coalescence of neutron star (NS+NS) and/or NS+black hole (NS+BH) binaries are calculated for a flat Universe (Ω=1) with ...
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Article
Cosmological rates of coalescing neutron stars and GRB
Assuming that gamma-ray bursts (GRB) originate from binary neutron star (NS) or black holes (BH) merging in distant galaxies, theoretical logN-logS distributions for gamma-ray bursts (GRB) are calculated using th...
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Chapter and Conference Paper
Supercritical Stages of Binary Evolution as Candidates to Outflowing Systems: Statistical Approach
According to the modern binary evolution scenario evolutionary stages at which accretion rate onto compact object exceeds a value defined by Eddington limit for luminosity are inevitable. As Shakura and Sunyae...
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Article
The joint evolution of normal and compact magnetized stars in close binaries: Analytical description and statistical simulation
The joint evolution of normal and compact stars in binaries of low and moderate masses (≤10M ⊙) is considered. The classification and analytical description are given for such evolution. The Monte-Carlo simulatio...
