Effects of ultra-strong magnetic field on electron capture rates of 55Co and 56Ni in the magnetar surrounding

  • The electron capture rates of 55Co and 56Ni in the ultra-strong magnetic field at four typical temperature-density points have been calculated using the nuclear shell model and Landau energy levels quantized approximate correction. The results show that the electron capture rates of 55Co and 56Ni are increased greatly in the ultra-strong magnetic field, and even exceed two orders of magnitude in the range from 4.414× 1013G to 2.207× 1017G. The change rate of electron abundance, Ýe, of 55Co and 56Ni under the condition of B=4.414× 1015G in the magnetar surrounding has been calculated and discussed, the proportions of Ýe of 55Co and 56Ni in the total Ýe have been reduced by 50 percent in all more than the condition without a magnetic field.
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DU Jun, LUO Zhi-Quan and LI Ping-Ping. Effects of ultra-strong magnetic field on electron capture rates of 55Co and 56Ni in the magnetar surrounding[J]. Chinese Physics C, 2014, 38(1): 015102. doi: 10.1088/1674-1137/38/1/015102
DU Jun, LUO Zhi-Quan and LI Ping-Ping. Effects of ultra-strong magnetic field on electron capture rates of 55Co and 56Ni in the magnetar surrounding[J]. Chinese Physics C, 2014, 38(1): 015102.  doi: 10.1088/1674-1137/38/1/015102 shu
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Received: 2013-03-19
Revised: 1900-01-01
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Effects of ultra-strong magnetic field on electron capture rates of 55Co and 56Ni in the magnetar surrounding

    Corresponding author: LUO Zhi-Quan,

Abstract: The electron capture rates of 55Co and 56Ni in the ultra-strong magnetic field at four typical temperature-density points have been calculated using the nuclear shell model and Landau energy levels quantized approximate correction. The results show that the electron capture rates of 55Co and 56Ni are increased greatly in the ultra-strong magnetic field, and even exceed two orders of magnitude in the range from 4.414× 1013G to 2.207× 1017G. The change rate of electron abundance, Ýe, of 55Co and 56Ni under the condition of B=4.414× 1015G in the magnetar surrounding has been calculated and discussed, the proportions of Ýe of 55Co and 56Ni in the total Ýe have been reduced by 50 percent in all more than the condition without a magnetic field.

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