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- Title
Influence of super-strong magnetic fields on beta decay of nuclide ${}^{59}\mbox{Co}$ in magnetar surface.
- Authors
Liu, Jing-Jing; Liu, Dong-Mei
- Abstract
Based on the relativistic theory in super-strong magnetic fields (SMFs), we investigate the influence of SMFs on beta decay and the change rates of electron fraction (CREF) of nuclei ${}^{59}\mbox{Co}$ in magnetars. Firstly, we find the magnetic fields have a slight influence on the beta decay rates for a given temperature when $\rho_{7}<1$. However, the beta decay rates decrease greatly by more than five orders of magnitude when $\rho_{7}>1$. Secondly, our results show that this effect of SMFs can increase beta reaction rates by two orders magnitude when $10 \leq B_{12} \leq 10^{4}~\mbox{G}$. For instance, the beta decay rate for ${}^{56}\mbox{Co}$ increases from $4.797\times10^{-3}$ to $3.284\times10^{-1}$ at $\rho_{7}=4.32$. Finally, we find that the CREF increases about by two orders of magnitude in SMFs and the enhancement factor will be high as 95.95 for $\rho_{7}=4.32$.
- Subjects
MAGNETIC fields; BETA decay; NUCLIDES; MAGNETARS; RELATIVISTIC astrophysics; DECAY rates (Radioactivity)
- Publication
Astrophysics & Space Science, 2016, Vol 361, Issue 8, p1
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-016-2830-0