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Chin. Phys. B, 2013, Vol. 22(12): 129701    DOI: 10.1088/1674-1056/22/12/129701
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS Prev  

Electron capture rates for iron group nuclei at the surface of magnetar

Luo Xiaa b, Du Juna, Li Ping-Pinga
a Institute of Theoretical Physics, China West Normal University, Nanchong 637009, China;
b National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Abstract  Effects of an ultra-strong magnetic field on electron capture rates for 55Co are analyzed in the nuclear shell model and under the Landau energy levels quantized approximation in the ultra-strong magnetic field, and the electron capture rates on 10 abundant iron group nuclei at the surface of a magnetar are given. The results show that electron capture rates on 55Co are increased greatly in the ultra-strong magnetic field, by about 3 orders of magnitude generally. These conclusions play an important role in future study of the evolution of magnetars.
Keywords:  electron capture      magnetar     
Received:  19 March 2013      Published:  25 October 2013
PACS:  97.60.-s (Late stages of stellar evolution (including black holes))  
  95.85.Sz (Gravitational radiation, magnetic fields, and other observations)  
  23.40.-s (β-decay;double β-decay; electron and muon capture)  
Fund: Project supported by the National Natural Science Foundation of China (Grand No. U1331121 and 11273020).
Corresponding Authors:  Du Jun     E-mail:  dduujjuunn@163.com

Cite this article: 

Luo Xia, Du Jun, Li Ping-Ping Electron capture rates for iron group nuclei at the surface of magnetar 2013 Chin. Phys. B 22 129701

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