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ASTROFIZIK KOMPOKT OB'EKTLARDAN YUQORI ENERGIYALI ZARRACHA
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ASTROFIZIK KOMPOKT OB'EKTLARDAN YUQORI ENERGIYALI ZARRACHA
Anotatsiya Ushbu ishda, birinchi navbatda, biz qora tuynuklar va neytron yulduzlari kabi astrofizik ixcham ob'ektlar atrofidagi zarrachalarning tezlanish mexanizmlarini ko'rib chiqdik. Relyativistik astrofizikada ixcham tortishuvchi jismlardan energiya olish jarayonlarini va bunday ob'ektlar tomonidan zarrachalarning (ultra) yuqori energiyagacha tezlashishini o'rganish muhim va dolzarb masaladir. Biz qora tuynuk zaryadi bilan elektr Penrose jarayonini o'rgandik, Q aylanadigan magnitlangan neytron yulduzlarning qutb qopqog'i hududida zaryadlangan zarrachalarning tezlashishini o'rgandik. Kalit so'zlar: yuqori energiyali zarralar, qora tuynuklar, neytron yulduzlar, kosmik nurlar, tezlanish mexanizmlari. General relativity and gravitation : 04.40.Dg, 04.40.Nr, 04.50.Kd Introduction. The recent unprecedented discovery of extragalactic high-energy neutrinos has enabled pinpointing their source to blazars, which are supermassive black holes at a distance of 1.75 Gpc with relativistic jets directed almost exactly toward us. It is generally believed that such neutrinos are tracers of ultrahigh-energy cosmic rays (UHECRs) which are the most energetic among particles detected on Earth, with an energy E>1018 eV that is unreachable by the current most powerful particle accelerators, such as the Large Hadron Collider, with a maximum energy <1013 eV per beam. Constituents of UHECRs were thought to be dominated by protons, as indicated by cosmic-ray fluorescence measurements, although recent observations are suggesting heavier constituents. For Galactic cosmic rays, one should observe anisotropy in the arrival direction dominantly on the Galactic plane. As observed by both the Pierre Auger Observatory in the Southern Hemisphere in the Telescope Array in the North- ern Hemisphere, UHECRs with energy >1018 eV are extragalactic with very high confidence level. The spectrum of cosmic rays exhibits the presence of the so-called knee and ankle. Cosmic rays with energy up to 1015.5 eV are generally believed to be produced in Galactic supernova explosions, while the significant lowering of flux between the knee and 1018.5 eV suggests a change in the source of such particles.[1] 1013> Download 1.32 Mb. Do'stlaringiz bilan baham: |
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