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Uncommon SN 2020jfo: Ordinary explosion of 8 Msun red supergiant with dense wind
V. P. Utrobin, N. N. Chugai
We present the hydrodynamic model of Type IIP SN 2020jfo with the unusually short (nearly 60 days) light curve plateau. The model suggests the explosion of about 8 Msun red supergi…
Cosmic ray anisotropy study by means of detection of muon bundles
G. Trinchero, M. B. Amelchakov, A. G. Bogdanov +11
In this work, we use muon bundles which are formed in extensive air showers and detected at the ground level as a tool for searching anisotropy of high energy cosmic rays. Such cho…
Researching of magnetic cutoff for local sources of charged particles in the halo of the Galaxy
M. Yu. Khlopov, A. O. Kirichenko, A. G. Mayorov
Models of highly inhomogeneous baryosynthesis of the baryonic asymmetric Universe allow for the existence of macroscopic domains of antimatter, which could evolve in a globular clu…
Sgr B2 hard X-ray emission with INTEGRAL after 2009: still detectable?
Ekaterina Kuznetsova, Roman Krivonos, Alexander Lutovinov +1
Molecular cloud Sgr B2 is a natural Compton mirror in the Central Molecular Zone. An observed fading of the Sgr B2 X-ray emission in continuum and Fe K 6.4 keV line indicates, a…
Study of the X-ray Pulsar XTE J1946+274 with NuSTAR
A. S. Gorban, S. V. Molkov, S. S. Tsygankov +1
We present the results of our spectral and timing analysis of the emission from the transient X-ray pulsar XTE J1946+274 based on the simultaneous NuSTAR and Swift/XRT observations…
The rise of muon content in extensive air showers after the 3 PeV knee of the primary cosmic ray spectrum according to data of the Tien Shan mountain installation
A. Shepetov, S. Shaulov, O. Likiy +4
We put together the experimental results on muon component of extensive air showers (EAS) which were gained with various techniques at the detector complex of the Tien Shan mountai…
Phase-Resolved Spectroscopy of the Magnetar SGR J1745-2900 Based on Data from the NuSTAR Observatory
E. A. Kuznetsova, A. A. Lutovinov, A. N. Semena
The magnetar SGR J1745-2900 located in the vicinity of the supermassive black hole Sgr A was detected during its X-ray outburst with the Swifht/XRT telescope in April 201…
The primary cosmic-ray energy spectrum measured with the Tunka-133 array
N. M. Budnev, A. Chiavassa, O. A. Gress +21
The EAS Cherenkov light array Tunka-133, with 3 km geometric area, is taking data since 2009.The array permits a detailed study of energy spectrum and mass composition o…
Supernova 1987A: 3D Mixing and light curves for explosion models based on binary-merger progenitors
V. P. Utrobin, A. Wongwathanarat, H. -Th. Janka +4
Six binary-merger progenitors of Supernova 1987A (SN 1987A) with properties close to those of the blue supergiant Sanduleak -69 202 are exploded by neutrino heating and evolved unt…
The X-ray Background Emission of the Galactic Center and Bulge with NuSTAR
Ekaterina Kuznetsova, Roman Krivonos, Kerstin Perez +1
The Galactic diffuse X-ray emission (GDXE) is believed to arise from unresolved populations of numerous low-luminosity X-ray binary systems that trace stellar mass distribution of…
INTEGRAL view on Cataclysmic Variables and Symbiotic Binaries
Alexander Lutovinov, Valery Suleimanov, Gerardo Juan Manuel Luna +5
Accreting white dwarfs (WDs) constitute a significant fraction of the hard X-ray sources detected by the INTEGRAL observatory. Most of them are magnetic Cataclysmic Variables (CVs)…
Evidence for a Supergalactic Structure of Magnetic Deflection Multiplets of Ultra-High Energy Cosmic Rays
Telescope Array Collaboration, R. U. Abbasi, M. Abe +140
Evidence for a large-scale supergalactic cosmic ray multiplet (arrival directions correlated with energy) structure is reported for ultra-high energy cosmic ray (UHECR) energies ab…
Resolving the puzzle of type IIP SN 2016X
V. P. Utrobin, N. N. Chugai
The enigmatic type IIP SN 2016X demonstrates the unprecedented asphericity in the nebular H-alpha line profile, the absence of nebular [O I] emission, and the unusual occultation e…
Three-dimensional mixing and light curves: constraints on the progenitor of supernova 1987A
Victor Utrobin, Annop Wongwathanarat, H. -Thomas Janka +3
With the same method as used previously, we investigate neutrino-driven explosions of a larger sample of blue supergiant models. The larger sample includes three new presupernova s…
Testing a reported correlation between arrival directions of ultrahigh-energy cosmic rays and a flux pattern from nearby starburst galaxies using Telescope Array data
Telescope Array Collaboration, R. U. Abbasi, M. Abe +138
The Pierre Auger Collaboration (Auger) recently reported a correlation between the arrival directions of cosmic rays with energies above 39 EeV and the flux pattern of 23 nearby st…
Secondary cosmic rays in the NUCLEON space experiment
V. Grebenyuk, D. Karmanov, I. Kovalev +9
The NUCLEON space observatory is a direct cosmic ray spectrometer designed to study cosmic ray nuclei with at energies eV. It was launched as an addition…
LOFAR discovery of a 23.5-second radio pulsar
C. M. Tan, C. G. Bassa, S. Cooper +16
We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR…
Study of muons from ultra-high energy cosmic ray air showers measured with the Telescope Array experiment
Telescope Array Collaboration, R. U. Abbasi, M. Abe +138
One of the uncertainties in interpretation of ultra-high energy cosmic ray (UHECR) data comes from the hadronic interaction models used for air shower Monte Carlo (MC) simulations.…
Radius of the neutron star magnetosphere during disk accretion
E. V. Filippova, I. A. Mereminskiy, A. A. Lutovinov +2
The dependence of the spin frequency derivative of accreting neutron stars with a strong magnetic field (X-ray pulsars) on the mass accretion rate (bolometric luminosity, $…
Luminous type IIP SN 2013ej with high-velocity Ni-56 ejecta
V. P. Utrobin, N. N. Chugai
We explore the well-observed type IIP SN 2013ej with peculiar luminosity evolution. It is found that the hydrodynamic model cannot reproduce in detail the bolometric luminosity at…
AX J1910.7+0917: the slowest X-ray pulsar
L. Sidoli, G. L. Israel, P. Esposito +2
Pulsations from the high mass X-ray binary AXJ1910.7+0917 were discovered during Chandra observations performed in 2011 (Israel et al. 2016). We report here more details on this di…
Search for photon bubble oscillations in V0332+53
Mikhail G. Revnivtsev, Sergey V. Molkov, Mikhail N. Pavlinsky
We report results of our search for fast oscillations in lightcurve of one of the brightest accretion powered pulsars on the sky V0332+53 with the help of data of the PCA spectrome…
Determining the Nature of Faint X-Ray Sources from the ASCA Galactic Center Survey
A. A. Lutovinov, M. G. Revnivtsev, D. I. Karasev +6
We present the results of the identification of six objects from the ASCA Galactic center and Galactic plane surveys: AXJ173548-3207, AXJ173628-3141, AXJ1739.5-2910, AXJ1740.4-2856…
Relation between the X-ray and Optical Luminosities in Binary Systems with Accreting Nonmagnetic White Dwarfs
M. G. Revnivtsev, E. V. Filippova, V. F. Suleimanov
We investigate the relation between the optical (g-band) and X-ray (0.5-10 keV) luminosities of accreting nonmagnetic white dwarfs. According to the present-day counts of the popul…