Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Ptuskin, V S"'
It is shown that the acceleration of particles by a powerful relativistic jet associated with the activity of a supermassive black hole in the Galactic center several million years ago may explain the observed cosmic ray spectrum at energies higher t
Externí odkaz:
http://arxiv.org/abs/2312.13172
Publikováno v:
MNRAS 519, L5-L9 (2023)
It is shown that the relativistic jets associated with the growth and past activity of the supermassive black hole in the Andromeda galaxy could be the main source of cosmic rays with energies above $10^{15}$ eV. Most of the cosmic ray energy is rela
Externí odkaz:
http://arxiv.org/abs/2211.04522
Autor:
Zirakashvili, V. N., Ptuskin, V. S.
We consider diffusive shock acceleration in supernova remnants throughout their evolution including a radiative stage. It is found that a more efficient acceleration and fast exit of particles at the radiative stage results in the hardening of the so
Externí odkaz:
http://arxiv.org/abs/2112.09419
Autor:
Panov, A. D., Astapov, I. I., Awad, A. K., Beskin, G. M., Bezyazeekov, P. A., Blank, M., Bonvech, E. A., Borodin, A. N., Bruckner, M., Budnev, N. M., Bulan, A. V., Chernov, D. V., Chiavassa, A., Dyachok, A. N., Gafarov, A. R., Garmash, A. Yu., Grebenyuk, V. M., Gress, O. A., Gress, T. I., Grinyuk, A. A., Grishin, O. G., Horns, D., Ivanova, A. L., Kalmykov, N. N., Kindin, V. V., Kiryuhin, S. N., Kokoulin, R. P., Kompaniets, K. G., Korosteleva, E. E., Kozhin, V. A., Kravchenko, E. A., Krivopalova, A. A., Kuzmichev, L. A., Kryukov, A. P., Lagutin, A. A., Lavrova, M. V., Lemeshev, Yu., Lubsandorzhiev, B. K., Lubsandorzhiev, N. B., Lukanov, A. D., Mirgazov, R. R., Mirzoyan, R., Monkhoev, R. D., Osipova, E. A., Pakhorukov, A. L., Pan, A., Pankov, L. V., Petrukhin, A. A., Podgrudkov, D. A., Poleschuk, V. A., Popova, E. G., Porelli, A., Postnikov, E. B., Prosin, V. V., Ptuskin, V. S., Pushnin, A. A., Raikin, R. I., Razumov, A., Rjabov, E., Rubtsov, G. I., Sagan, Y. I., Samoliga, V. S., Sidorenkov, A. Yu., Silaev, A. A., Skurikhin, A. V., Satyshev, I., Sokolov, A. V., Suvorkin, Y., Sveshnikova, L. G., Tabolenko, V. A., Tanaev, A. B., Tarashansky, B. A., Ternovoy, M., Tkachev, L. G., Tluczykont, M., Ushakov, N., Vaidyanathan, A., Volchugov, P. A., Volkov, N. V., Voronin, D., Wischnewski, R., Yashin, I. I., Zagorodnikov, A. V., Zhurov, D. P.
Publikováno v:
Physics of Atomic Nuclei volume 84, pages 1037-1044 (2021)
A wide-angle Cerenkov array TAIGA-HiSCORE (FOV $\sim$0.6 sr), was originally created as a part of TAIGA installation for high-energy gamma-ray astronomy and cosmic ray physics. Array now consist on nearly 100 optical stations on the area of 1 km$^2$.
Externí odkaz:
http://arxiv.org/abs/2109.09637
Autor:
Budnev, N. M., Chiavassa, A., Gress, O. A., Gress, T. I., Dyachok, A. N., Karpov, N. I., Kalmykov, N. N., Korosteleva, E. E., Kozhin, V. A., Kuzmichev, L. A., Lubsandorzhiev, B. K., Lubsandorzhiev, N. B., Mirgazov, R. R., Osipova, E. A., Panasyuk, M. I., Pankov, L. V., Popova, E. G., Prosin, V. V., Ptuskin, V. S., Semeney, Yu. A., Silaev, A. A., Skurikhin, A. V., Spiering, C., Sveshnikova, L. G.
Publikováno v:
Astropart.Phys. 117 (2020) 102406
The EAS Cherenkov light array Tunka-133, with $\sim$ 3 km$^2$ geometric area, is taking data since 2009.The array permits a detailed study of energy spectrum and mass composition of cosmic rays in the energy range from $6\cdot 10^{15}$ to $10^{18}$ e
Externí odkaz:
http://arxiv.org/abs/2104.03599
Publikováno v:
A&A 633, A72 (2020)
We aim to elucidate cosmic ray (CR) propagation in the weakly ionized environments of supernova remnants (SNRs) basing our analysis on the cosmic ray cloud (CRC) model developed by \citet{2013ApJ...768...73M} and \citet{2016MNRAS.461.3552N}. We solve
Externí odkaz:
http://arxiv.org/abs/1909.04530
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Autor:
Zirakashvili, V. N., Ptuskin, V. S.
We investigate acceleration of cosmic rays by shocks and accretion flows in galaxy clusters. Numerical results for spectra of accelerated particles and nonthermal emission are presented. It is shown that the acceleration of protons and nuclei in the
Externí odkaz:
http://arxiv.org/abs/1808.00107
Autor:
Zirakashvili, V. N., Ptuskin, V. S.
We consider the diffusive shock acceleration in interstellar bubbles created by powerful stellar winds of supernova progenitors. Under the moderate stellar wind magnetization the bubbles are filled by the strongly magnetized low density gas. It is sh
Externí odkaz:
http://arxiv.org/abs/1712.02174
The inverse problem of cosmic ray transport of ultra-high energy cosmic rays is considered. The analysis of Auger data on energy spectrum, energy dependence of mean logarithm of atomic mass number and its variance allows definite conclusions on the s
Externí odkaz:
http://arxiv.org/abs/1701.00820