Zobrazeno 1 - 10
of 1 061
pro vyhledávání: '"Zakharov A. I."'
Publikováno v:
Phys. Rev. D 110, 123026 (2024)
In this paper we present new constraints on the velocity-independent cross section of keV-scale mass annihilating Dark Matter particles obtained with SRG/ART-XC after 4 full-sky surveys. These constraints are derived from observations of the Milky Wa
Externí odkaz:
http://arxiv.org/abs/2407.18371
Publikováno v:
Open Astronomy, Vol 25, Iss 4, Pp 400-410 (2016)
The next stage after performing observations and their primary reduction is to transform the set of observations into a catalog. To this end, objects that are irrelevant to the catalog should be excluded from observations and gross errors should be d
Externí odkaz:
https://doaj.org/article/1badebdd55564a6cab897870d704ae64
We consider an accelerated relativistic fluid in four-dimensional (anti-)de Sitter space-time. Analyzing only hydrodynamic equations, we construct the equilibrium stress-energy tensor. We confirm that (A)dS vacuum corresponds to a thermal bath in the
Externí odkaz:
http://arxiv.org/abs/2308.08647
Autor:
Prokhorov M. E., Zakharov A. I., Mironov A. V., Biryukov A. V., Stekol’shchikov O. Yu., Tuchin M. S., Zhukov A. O.
Publikováno v:
Open Astronomy, Vol 24, Iss 1, Pp 92-99 (2015)
We analyze the possibility of performing a deep survey of a part of the sky near the poles of the spacecraft orbit from a low-orbit spacecraft with fixed orbital orientation. The survey depth can be increased by several magnitudes by reducing the sur
Externí odkaz:
https://doaj.org/article/1f73e71e5793475f8be9971db1a4d5b3
By chiral effects one understands manifestations of chiral gauge anomaly and of gravitational chiral anomaly in hydrodynamics. In recent two-three years our understanding of the chiral effects has considerably changed. Here we present mini-review of
Externí odkaz:
http://arxiv.org/abs/2307.15757
Autor:
Plavin, A. V., Burenin, R. A., Kovalev, Y. Y., Lutovinov, A. A., Starobinsky, A. A., Troitsky, S. V., Zakharov, E. I.
Publikováno v:
JCAP 05 (2024) 133
Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them. Evaluating high-energy photon emission of such blazars is crucial for better understanding of the processes and regions where neutri
Externí odkaz:
http://arxiv.org/abs/2306.00960
Publikováno v:
Open Astronomy, Vol 23, Iss 3-4, Pp 286-290 (2014)
Modern spectrophotometric atlases are burdened with significant systematic errors. In particular, the problems of spectrum calibration in the ultraviolet region are not solved; different parts of the spectrum are not thoroughly fit to each other; spe
Externí odkaz:
https://doaj.org/article/41810b196b814cf2bdd5715a594979d9
We consider gas of massless fermions at certain temperature T and acceleration a. We find a second order phase transition at temperature T approaching the Unruh temperature TU. The implications for hadronization of the quark-gluon plasma produced in
Externí odkaz:
http://arxiv.org/abs/2304.13151
Autor:
Zakharov, E. I., Barinov, V. V., Burenin, R. A., Gorbunov, D. S., Krivonos, R. A., Tkachenko, A. Yu., Arefiev, V. A., Filippova, E. V., Grebenev, S. A., Lutovinov, A. A., Mereminsky, I. A., Sazonov, S. Yu., Semena, A. N., Shtykovsky, A. E., Sunyaev, R. A.
Publikováno v:
Phys. Rev. D 109, L021301 (2024)
Dark matter sterile neutrinos radiatively decay in the Milky Way, which can be tested with searches for almost monochromatic photons in the X-ray cosmic spectrum. We analyse the data of SRG/ART-XC telescope operated for two years in the all-sky surve
Externí odkaz:
http://arxiv.org/abs/2303.12673
In a fluid with vorticity and acceleration, an axial current arises in the third order of gradient expansion, called the kinematical vortical effect (KVE). While existing in the absence of gravitational fields, it is nevertheless associated with effe
Externí odkaz:
http://arxiv.org/abs/2211.03865