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Strong screening effects on resonant nuclear reaction ^(23)Mg(p,γ) ^(24)Al in the surface of magnetars
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作者 Jing-Jing Liu 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2016年第5期117-124,共8页
Based on the theory of relativistic superstrong magnetic fields (SMFs), by using the method of Thomas-Fermi-Dirac approximations, we investigate the problem of strong electron screening (SES) in SMFs and the influ... Based on the theory of relativistic superstrong magnetic fields (SMFs), by using the method of Thomas-Fermi-Dirac approximations, we investigate the problem of strong electron screening (SES) in SMFs and the influence of SES on the nuclear reaction of 23Mg (p, Y)24A1. Our calculations show that the nuclear reaction will be markedly effected by the SES in SMFs in the surface of magnetars. Our calculated screening rates can increase two orders of magnitude due to SES in SMFs. 展开更多
关键词 physical data and processes: nuclear reactions NUCLEOSYNTHESIS abundances -- stars: neutron-- stars: magnetic fields
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Supernova β^- decay of nuclides ^(53)Fe,^(54)Fe,^(55)Fe and ^(56)Fe in strongly screened plasma
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作者 Jing-Jing Liu Dong-Mei Liu 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2018年第1期95-100,共6页
Electron screening has strong effects on electron energy and threshold energy of the beta decay reaction.In this paper,we study β~-decay rates of some iron isotopes.The beta decay rates increase by about two orders o... Electron screening has strong effects on electron energy and threshold energy of the beta decay reaction.In this paper,we study β~-decay rates of some iron isotopes.The beta decay rates increase by about two orders of magnitude due to electron screening.Strongly screened beta decay rates due to Q-value correction are more than one order of magnitude higher than those without Q-value correction. 展开更多
关键词 physical data and processes:nuclear reactions NUCLEOSYNTHESIS abundances stars:supernovae
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Beta decay of nuclides ^(56)Fe,^(62)Ni,^(64)Ni and ^(68)Ni in the crust of magnetars
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作者 Jing-Jing Liu Xiao-Ping Kang +4 位作者 Liang-Huan Hao Hao Feng Dong-Mei Liu Chang-Wei Li Xiang-Ming Zeng 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2016年第11期71-80,共10页
By introducing the Dirac δ-function and Pauli exclusion principle in the presence of superstrong magnetic fields (SMFs), we investigate the influence of SMFs on beta decay and the change rates of electron fraction ... By introducing the Dirac δ-function and Pauli exclusion principle in the presence of superstrong magnetic fields (SMFs), we investigate the influence of SMFs on beta decay and the change rates of electron fraction (CREF) of nuclides 56Fe, 62Ni, 64Ni and 6SNi in magnetars, which are powered by magnetic field energy. We find that the magnetic fields have a great influence on the beta decay rates, and the beta decay rates can decrease by more than six orders of magnitude in the presence of SMFs. The CREF also decreases by more than seven orders of magnitude in the presence of SMFs. 展开更多
关键词 physical data and processes: nuclear reactions NUCLEOSYNTHESIS abundances -- stars: neutron-- stars: magnetic fields
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