论文标题
碳等级序列C,N $^+$和O $^{2+} $与原子氢诱导的碳的细胞结构过渡
Fine-structure transitions of the carbon isoelectronic sequence C, N$^+$ and O$^{2+}$ induced by collisions with atomic hydrogen
论文作者
论文摘要
精细结构转变可能参与各种过程,包括光子吸收,电荷转移和离子,电子和中性原子之间的非弹性碰撞。我们为碳isoelectronic序列的前几个成员(C,N $^+$和O $^{2+} $)与原子氢进行了碳等级序列(C,N $^+$和O $^{2+} $)的碰撞提供了精细的结构激发和放松横截面。对于C,通过与先前的计算进行比较来验证散射理论和计算方法。获得碰撞过程的速率系数。对于n $^+$和o $^{2+} $,过渡对应于[\ ion {o} {iii}] 52〜 {\ textmu} m,[\ ion {o} {o} {iii} {iii}] 88〜〜和[\ ion {n} {ii}] 205〜 {\ textmu} m,在本地宇宙的远红外观察到,最近使用无线电干扰法在高红色的星系中观察到。证明了不同电势对横截面和速率系数的影响。
Fine-structure transitions can be involved in various processes including photon absorption, charge transfer and inelastic collision between ions, electrons and neutral atoms. We present fine-structure excitation and relaxation cross sections for the collisions of the first few members of the carbon isoelectronic sequence (C, N$^+$ and O$^{2+}$) with atomic hydrogen calculated using quantum-mechanical methods. For C, the scattering theory and computational approach is verified by comparison with previous calculations. The rate coefficients for the collisional processes are obtained. For N$^+$ and O$^{2+}$, the transitions correspond to the lines [\ion{O}{iii}] 52~{\textmu}m, [\ion{O}{iii}] 88~{\textmu}m, [\ion{N}{ii}] 122~{\textmu}m, and [\ion{N}{ii}] 205~{\textmu}m, observed in the far-infrared in the local Universe and more recently in high-redshift galaxies using radio interferometry. The influence of different potentials on the cross sections and rate coefficients are demonstrated.