UV transitions of astrophysical interest in Ge II, As II and Se II |
| |
| Authors: | E Biémont D C Morton & P Quinet |
| |
| Institution: | Institut d'Astrophysique, Universitéde Liège, 5, Avenue de Cointe, B-4000 Liège, Belgium,;Herzberg Institute of Astrophysics, National Research Council, Victoria, Canada V8X 4M6,;Astrophysique et Spectroscopie, Universitéde Mons-Hainaut, Rue de la Halle, 15 B-7000 Mons, Belgium |
| |
| Abstract: | An extensive set of oscillator strengths and transition probabilities has been obtained for the UV transitions originating from the ground 4s24p n ( n =1–3) states of Ge II , As II and Se II . These new data, calculated within the framework of a pseudo-relativistic Hartree–Fock (HFR) approach, fill in the gap existing in the atomic data needed for elemental abundance analysis of the interstellar medium. The f values are compared with the rather scarce results previously published in the literature. The astrophysical implications of the new transition rates regarding the interstellar medium are discussed. |
| |
| Keywords: | atomic data atomic processes ISM: abundances ISM: atoms ultraviolet: ISM |
|
|
