Relativistic R-matrix calculations for L-shell photoionization cross sections of C II<xref rid="cpb_27_8_083201fn1" ref-type="fn">*</xref><fn id="cpb_27_8_083201fn1"><label>*</label>Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402300), the National Natural Science Foundation of China (Grant Nos. U1530142, 11474032, and 11774344), and the Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University (Grant No. NWNU-LKQN-15-3).</fn>

Relativistic R-matrix calculations for L-shell photoionization cross sections of C II**

Project supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402300), the National Natural Science Foundation of China (Grant Nos. U1530142, 11474032, and 11774344), and the Young Teachers Scientific Research Ability Promotion Plan of Northwest Normal University (Grant No. NWNU-LKQN-15-3).

Xie Lu-You^{1, †}, Man Qian-Qian¹, Wang Jian-Guo², Qu Yi-Zhi³, Dong Chen-Zhong¹

(color online) PI cross section of the ground state and the excited state of C II ions from the region 36.5 eV–41.5 eV of photon energy, showing (a) detailed resonances for the ground state (solid curve) and the excited state , (b) theoretical data convolved with Gaussian FWHM of 40 meV and multiplied by 0.85 (magenta line), and compared with experimentally measured cross sections (black line) by Kjeldsen et al.^[22] and norelativistic R-matrix results (green line) by Nahar.^[16]