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Chin. Phys. B, 2008, Vol. 17(6): 2317-2320    DOI: 10.1088/1674-1056/17/6/064
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS Prev   Next  

Effect of superstrong magnetic fields on thermonuclear reaction rates on the surface of magnetars

Liu Hong-Lin, Luo Zhi-Quan, Lai Xiang-Jun, Liu Jing-Jing
Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China
Abstract  A simple and efficient screening model for studying the effects of superstrong magnetic fields (such as those of magnetars) on thermonuclear reaction rates on magnetar surfaces is proposed in this paper. The most interesting thermonuclear reactions, including hydrogen burning by the CNO cycle and helium burning by the triple alpha reaction, are investigated on the surface of magnetars. We find that the superstrong magnetic fields can increase the thermonuclear reaction rates by many orders of magnitude. The enhancement may have a dramatic effect on the thermonuclear runaways and bursts on the surfaces of magnetars.
Keywords:  neutron stars      nucleosynthesis      strong magnetic fields     
Received:  03 December 2007      Published:  20 June 2008
PACS:  97.10.Ld (Magnetic and electric fields; polarization of starlight)  
  25.55.-e (3H-, 3He-, and 4He-induced reactions)  
  27.20.+n (6 ≤ A ≤ 19)  
  95.30.Cq (Elementary particle processes)  
  97.10.Cv (Stellar structure, interiors, evolution, nucleosynthesis, ages)  
  97.30.Fi (Chemically peculiar stars (Ap, Am, etc.))  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10778719); the Scientific Research and Fund of Sichuan Provincial Education Department, China (Grant No 2006A079) and the Science and Technological Foundation of China West No

Cite this article: 

Liu Hong-Lin, Luo Zhi-Quan, Lai Xiang-Jun, Liu Jing-Jing Effect of superstrong magnetic fields on thermonuclear reaction rates on the surface of magnetars 2008 Chin. Phys. B 17 2317

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