Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...475..393a&link_type=abstract
Astronomy and Astrophysics, Volume 475, Issue 1, November III 2007, pp.393-399
Astronomy and Astrophysics
Astrophysics
6
Atomic Data, Atomic Processes
Scientific paper
Aims:In this paper we report calculations for energy levels, radiative rates and excitation rates for transitions in Ni xi. Methods: The grasp (General-purpose Relativistic Atomic Structure Package) and fac (Flexible Atomic Code) have been adopted for calculating energy levels and radiative rates, and the Dirac Atomic R-matrix Code (darc) has been used to determine the excitation rates. Results: Oscillator strengths, radiative rates and line strengths are reported for all E1, E2, M1 and M2 transitions among the lowest 250 levels of Ni xi. Additionally, lifetimes are also reported for all levels. However, results for excitation rates are presented only for transitions among the lowest 17 levels.
Tables 1, 3, 4 and 7 are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/475/393
Aggarwal Kanti M.
Keenan Francis P.
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