### Abstract

Effective collision strengths computed by the R-matrix method are presented for the electron-impact excitation of nitrogen-like S X. The total wave function used in the expansion includes the lowest 11 eigenstates of S X which arise from the 2s(2)2p(3), 2s2p(4), 2p(5) and 2s(2)2p(2)3s configurations. These 11 LS target states correspond to 22 fine-structure levels, giving 231 possible transitions. All the effective collision strengths for these transitions are tabulated in the range log T(K) = 4.6 to log T(K) = 6.7. The energy level values and oscillator strengths for allowed transitions are also tabulated. The effective collision strengths were calculated by averaging the electron collision strengths over a Maxwellian distribution of velocities. The present effective collision strengths are the only results currently available for these fine-structure transition rates. (C) 2000 Academic Press.

Original language | English |
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Pages (from-to) | 176-190 |

Number of pages | 15 |

Journal | Atomic Data and Nuclear Data Tables |

Volume | 76 |

Issue number | 1 |

Publication status | Published - Sep 2000 |

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

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## Cite this

Bell, K., & Ramsbottom, C. (2000). Effective collision strengths for electron-impact excitation of S X.

*Atomic Data and Nuclear Data Tables*,*76*(1), 176-190.