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Chin. Phys., 2007, Vol. 16(9): 2671-2675    DOI: 10.1088/1009-1963/16/9/030
NUCLEAR PHYSICS Prev   Next  

Effect of strong magnetic field on electron capture of iron group nuclei in crusts of neutron stars

Liu Jing-Jing, Luo Zhi-Quan, Liu Hong-Lin, Lai Xiang-Jun
Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China
Abstract  In this paper electron capture on iron group nuclei in crusts of neutron stars in a strong magnetic field is investigated. The results show that the magnetic fields have only a slight effect on electron capture rates in a range of 10$^{8}-10^{13}$G on surfaces of most neutron stars, whereas for some magnetars the magnetic fields range from 10$^{13}$ to 10$^{18}$~G. The electron capture rates of most iron group nuclei are greatly decreased, reduced by even four orders of magnitude due to the strong magnetic field.
Keywords:  electron capture      neutron star      strong magnetic field     
Received:  12 December 2006      Published:  20 September 2007
PACS:  23.40.-s (β-decay;double β-decay; electron and muon capture)  
  26.30.-k (Nucleosynthesis in novae, supernovae, and other explosive environments)  
  95.30.Cq (Elementary particle processes)  
  97.10.Cv (Stellar structure, interiors, evolution, nucleosynthesis, ages)  
  97.60.Jd (Neutron stars)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10347008).

Cite this article: 

Liu Jing-Jing, Luo Zhi-Quan, Liu Hong-Lin, Lai Xiang-Jun Effect of strong magnetic field on electron capture of iron group nuclei in crusts of neutron stars 2007 Chin. Phys. 16 2671

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