A rotating collapsar and possible interpretation of the LSD neutrino signal from SN 1987A

Imshennik, V. S.; Ryazhskaya, O. G.

doi:10.1134/1.1647473

Cited by 87 publications

(104 citation statements)

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“…2:52 UT results and 7:35 UT results correspond to a certain extent to the model of standard collapse (7:35 UT) [25,36]. Review about explanation of experiment results (2:52 UT; 7:35 UT) in the frame of the model (RMS) is published in [36,37].…”

Section: A Supernovae Explosion Sn1987amentioning

confidence: 84%

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Study of the penetrating component of cosmic rays underground using large scintillation detectors

Ryazhskaya

2016

J. Phys.: Conf. Ser.

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Abstract. The study of penetrating component of cosmic ray underground using large scintillation detectors situated in Russia and Italy is carried out during more than 40 years. The main results obtained at the different depths from 25 m w.e. to 5200 m w.e. are presented in this report. IntroductionThe term "Underground Physics" was introduced by prof. C. Castagnoli during the 1 st symposium on Underground physics in Saint-Vincent (UP-85) dedicated to the opening ceremony of the russianitalian LSD detector under MontBlanc [1]. In this year we can celebrate 30 years of Underground Physics (UP). UP as physics in general is the experimental science. The mother of the truth in physics is the experiment. Therefore paying tribute to the wonderful works of theoreticians in this field of knowledge we will say here about the experiments carried out by collaborators of Russian Academy of Science and collaborators of RAS with their Italian colleagues in UP during that time: ASD (Arteomovsk Scintillation Detector) [2], BUST (Baksan Underground Scintillation Telescope) [3], LSD (Liquid Scintillation Detector) [4,5], LVD (Large Volume Detector) [6,7], SAGE (Ga-Ge experiment for solar neutrino detection in Baksan) [8], Baikal underwater experiment [9].The main problems of UP are: 1. Study of neutrino radiation (atmospheric neutrinos; solar neutrinos; neutrinos from collapsing stars); 2. Construction of underground detectors; 3. Detection of neutrino radiation from SN1987A; 4. Study of penetrating component of cosmic rays (energy spectrum; study of deep inelastic scattering of muons; generation of nuclear active component underground; depth-intensity curve of muons; depth-intensity curve of neutrons; seasonal modulation of the cosmic ray muon flux and neutron flux from muons; μ+/μ-ratio).

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Section: A Supernovae Explosion Sn1987amentioning

confidence: 84%

“…Review about explanation of experiment results (2:52 UT; 7:35 UT) in the frame of the model (RMS) is published in [36,37]. However, a numbers of questions still remains!…”

Section: A Supernovae Explosion Sn1987amentioning

confidence: 99%

Study of the penetrating component of cosmic rays underground using large scintillation detectors

Ryazhskaya

2016

J. Phys.: Conf. Ser.

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“…[23][24][25] Although, later analysis of the SN1987A data has not confirmed the fact of ν-GW correlation, 26,27 it has provoked for a non-standard two-stage scenario of stellar collapse (see a review in Ref. 28). The mean neutrino energy (during the first stage of the collapse) in this model is 30-40 MeV.…”

Section: B Prospect For the Ogran Long-term Operationmentioning

confidence: 99%

A high frequency resonance gravity gradiometer

Багаев

Bezrukov²,

Kvashnin

et al. 2014

Review of Scientific Instruments

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A new setup OGRAN--the large scale opto-acoustical gravitational detector is described. As distinguished from known gravitational bar detectors it uses the optical interferometrical readout for registering weak variations of gravity gradient at the kilohetz frequency region. At room temperature, its sensitivity is limited only by the bar Brownian noise at the bandwidth close to 100 Hz. It is destined for a search for rare events--gravitational pulses coincident with signals of neutrino scintillator (BUST) in the deep underground of Baksan Neutrino Observatory of INR RAS.

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“…The expansion rate continues to be about 4200 km/sec and there is no core X-ray source brighter than erg/sec. Efforts are still being made to account 34 1.5 # 10 for two neutrino bursts (Imshennik & Ryazhskaya 2004) and to connect the event with merger of a binary white dwarf (Middleditch 2004) and the formation of a 2.14 msec pulsar reported there some years ago.…”

Section: Historical Supernova Remnantsmentioning

confidence: 99%