Zobrazeno 1 - 10
of 53
pro vyhledávání: '"V. S. Berezinsky"'
Publikováno v:
Theoretical and Mathematical Physics. 170:83-89
We describe some specific but reasonable conditions for the formation of superdense clumps (or minihalos) of dark matter. Such clumps can be produced by several mechanisms, most notably by spiky features in the spectrum of density perturbations. Bein
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9074b9666ca809b2906d987ff241619
https://doi.org/10.1007/s11232-012-0008-7
https://doi.org/10.1007/s11232-012-0008-7
Publikováno v:
Gravitation and Cosmology. 18:57-60
We study the process of superdense dark matter clump (DMC) formation at the radiation-dominated stage of the Universe. High-magnitude density perturbations that lead to DMC formation can be peaks in the inflationary perturbation spectrum or closed lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::110e6192c41aa77077d5bbd3c57c8159
https://doi.org/10.1134/s0202289312010045
https://doi.org/10.1134/s0202289312010045
Autor:
E. V. Korolkova, Rosario Nania, L. G. Dos Santos, M. Selvi, Marco Aglietta, P. Vallania, A. Chiavassa, Pietro Antonioli, Luisa Cifarelli, F. Bersani, G. Cara Romeo, Antonella Castellina, V. L. Dadykin, L. Periale, M. Widgoff, V. B. Korchaguin, M. E. Bertaina, E. D. Alyea, L. Votano, P. L. Ghia, E. Kemp, I. A. Pless, N. Mengotti Silva, Antonino Zichichi, P. Galeotti, Roy Weinstein, F. Cindolo, K. Saitoh, Jose Chinellato, P. V. Korchaguin, P. Picchi, A. Pesci, S. Vernetto, G. T. Zatsepin, V. G. Ryasny, M. Luvisetto, F. F. Khalchukov, Gabriella Sartorelli, R. Bertoni, O. G. Ryazhskaya, Andrea Contin, A. S. Malguin, Tomonori Wada, G. Bruni, G. Bari, Carlo Vigorito, V. S. Berezinsky, V. F. Yakushev, V. A. Kudryavtsev, Nobusuke Takahashi, T. Massam, C. Castagnoli, Isao Yamamoto, Giovanni Badino, P. Giusti, C. Morello, W. Fulgione, G. C. Trinchero, Giuseppe Iacobucci, F. Grianti, R. I. Enikeev, G. Navarra, O. Saavedra, V. P. Talochkin, M. Basile, A. Turtelli, S. Tsuji, N. Taborgna
Publikováno v:
Astronomy & Astrophysics. 366:573-577
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e6ea9d3cfa0c3d8ff9d958db6de9231
https://doi.org/10.1051/0004-6361:20000233
https://doi.org/10.1051/0004-6361:20000233
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 138:25-27
We study the cosmological origin of small-scale DM clumps in the hierarchical scenario with a most conservative assumption of adiabatic gaussian fluctuations. The main included effect (tidal interaction) results in the formation of a large core in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50d8c1f6b76436148034c5dd0fabc0db
https://doi.org/10.1016/j.nuclphysbps.2004.11.004
https://doi.org/10.1016/j.nuclphysbps.2004.11.004
Publikováno v:
Physics of Atomic Nuclei. 67:1195-1197
The enhancement of the annihilation signal due to Dark Matter (DM) clumpiness in the Galactic halo, valid for arbitrary DM particles, is described. The mass spectrum of small-scale DM clumps with M≤103M⊙ is calculated with tidal destruction of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a99b936996f75e6622b45a8d48b88749
https://doi.org/10.1134/1.1772458
https://doi.org/10.1134/1.1772458
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 43:62-65
We describe a calculation of electromagnetic cascading in radiation and matter in the early universe initiated by the decay of massive particles or by some other process. We have used a combination of Monte Carlo and numerical techniques which enable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e9ad7a73a4c724a12e61ac889c36a72
https://doi.org/10.1016/0920-5632(95)00452-f
https://doi.org/10.1016/0920-5632(95)00452-f
Autor:
Vyacheslav Dokuchaev, V. S. Berezinsky
Publikováno v:
Scopus-Elsevier
It is described the astrophysical model of a short-lived and very powerful hidden source of high-energy neutrinos. This source is formed as a result of dynamical evolution of a galactic nucleus prior to its collapse into the massive black hole. A den
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::246626b12acc72dcdf69ff616d689fbd
https://doi.org/10.1016/s0920-5632(02)01554-2
https://doi.org/10.1016/s0920-5632(02)01554-2
We develop a model of production of the very dense clumps of DM in RD epoch due to the accretion of DM on the loops of cosmic strings as the seeds. At some time the loops disappear, for example due to the gravitational radiation, and the remaining de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63d840c391971fe885ad416c004efae8
http://arxiv.org/abs/1107.2751
http://arxiv.org/abs/1107.2751
Publikováno v:
Astroparticle Physics. 1:281-287
We perform a realistic estimate of the emission of TeV-PeV gamma rays and neutrinos by galactic matter irradiated by cosmic rays. Our calculation is directly based on profiles of matter in the galactic disk compiled by Bloemen. Our results can be com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad48ffb61c80eaaffa15f2d5f01a06e1
https://doi.org/10.1016/0927-6505(93)90014-5
https://doi.org/10.1016/0927-6505(93)90014-5
The formation and evolution of superdense clumps (or subhalos) is studied. Such clumps of dark matter (DM) can be produced by many mechanisms, most notably by spiky features in the spectrum of inflationary perturbations and by cosmological phase tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bb19820e9df90471cf3dba04fac767d
http://arxiv.org/abs/1002.3444
http://arxiv.org/abs/1002.3444