Resonant nuclear reaction <sup>23</sup>Mg (p,&gamma;) <sup>24</sup>Al in strongly screening magnetized neutron star crust

Jing-Jing Liu; Dong-Mei Liu

doi:10.1088/1674-1137/41/12/125102

Chinese Physics C> 2017, Vol. 41> Issue(12) : 125102 DOI: 10.1088/1674-1137/41/12/125102

Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust

Jing-Jing Liu ^, ,
Dong-Mei Liu ^,

1.
College of Marine Science and Technology, Hainan Tropical Ocean University, Sanya, Hainan 572022, China

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Based on the relativistic theory of superstrong magnetic fields (SMF), by using three models those of Lai (LD), Fushiki (FGP), and our own (LJ), we investigate the influence of SMFs due to strong electron screening (SES) on the nuclear reaction ²³Mg (p,γ) ²⁴Al in magnetars. In a relatively low density environment (e.g., ρ₇<0.01) and 1 < B₁₂ < 10², our screening rates are in good agreement with those of LD and FGP. However, in relatively high magnetic fields (e.g., B₁₂>10²), our reaction rates can be 1.58 times and about three orders of magnitude larger than those of FGP and LD, respectively (B₁₂, ρ₇ are in units of 10¹²G, 10⁷ g cm^-3). The significant increase of strong screening rate can imply that more ²³Mg will escape from the Ne-Na cycle due to SES in a SMF. As a consequence, the next reaction, ²⁴Al (β⁺, ν) ²⁴Mg, will produce more ²⁴Mg to participate in the Mg-Al cycle. Thus, it may lead to synthesis of a large amount of A > 20 nuclides in magnetars.
- dense matter:nuclear reactions ,
- nucleosynthesis ,
- abundances ,
- stars:magnetic fields ,
- stars:magnetars

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Jing-Jing Liu and Dong-Mei Liu. Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust[J]. Chinese Physics C, 2017, 41(12): 125102. doi: 10.1088/1674-1137/41/12/125102

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Received: 2017-03-30
Revised: 2017-09-26

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Supported by National Natural Science Foundation of China (11565020), the Counterpart Foundation of Sanya (2016PT43), the Special Foundation of Science and Technology Cooperation for Advanced Academy and Regional of Sanya (2016YD28), the Scientific Research Starting Foundation for 515 Talented Project of Hainan Tropical Ocean University (RHDRC201701) and the Natural Science Foundation of Hainan Province (114012)

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沈阳化工大学材料科学与工程学院沈阳 110142

Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust

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Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust

Corresponding author: Jing-Jing Liu,

Corresponding author: Dong-Mei Liu,

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Resonant nuclear reaction 23Mg (p,γ) 24Al in strongly screening magnetized neutron star crust

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通讯作者: 陈斌, bchen63@163.com

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Resonant nuclear reaction 23Mg (p,γ) 24Al in strongly screening magnetized neutron star crust

Corresponding author: Jing-Jing Liu,

Corresponding author: Dong-Mei Liu,

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Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust

Resonant nuclear reaction ²³Mg (p,γ) ²⁴Al in strongly screening magnetized neutron star crust