There can be found some notable discrepancies with regard to the resonance structures when R-matrix calculations from the Opacity Project and other sources are compared with recent absolute experimental measurements o...There can be found some notable discrepancies with regard to the resonance structures when R-matrix calculations from the Opacity Project and other sources are compared with recent absolute experimental measurements of Bizau et al [Astron. Astrophts. 439 387 （2005）] for B-like ions N^2＋, O^3＋ and F^4＋. We performed close-coupling calculations based on the R-matrix formalism for the photoionizations of ions mentioned above both for the ground states and first excited states in the near threshold regions. The present results are compared with experimental ones given by Bizau et al and earlier theoretical ones. Excellent agreement is obtained between our theoretical results and the experimental photoionization cross sections. The present calculations show a significant improvement over the previous theoretical results.展开更多
基金supported by the National Natural Science Foundation of China (Grant No 10674112)the Natural Science Foundation of the Gansu Province,China (Grant No 3ZS061-A25-013)+2 种基金the Foundation of Education Department of Gansu Province,China (Grant No 0601223)the Foundation of Northwest Normal University,China (Grant No NWNU-KJCXGC-03-21)the Foundation for Young Teacher of Northwest Normal University,China (Grant No NWNU-LKQN-08-5)
文摘There can be found some notable discrepancies with regard to the resonance structures when R-matrix calculations from the Opacity Project and other sources are compared with recent absolute experimental measurements of Bizau et al [Astron. Astrophts. 439 387 （2005）] for B-like ions N^2＋, O^3＋ and F^4＋. We performed close-coupling calculations based on the R-matrix formalism for the photoionizations of ions mentioned above both for the ground states and first excited states in the near threshold regions. The present results are compared with experimental ones given by Bizau et al and earlier theoretical ones. Excellent agreement is obtained between our theoretical results and the experimental photoionization cross sections. The present calculations show a significant improvement over the previous theoretical results.
