SIMBAD references

1999MNRAS.303..721B - Mon. Not. R. Astron. Soc., 303, 721-726 (1999/March-2)

Radiative lifetimes, branching fractions and transition probabilities in Ge I - solar implications.

BIEMONT E., LYNGA C., LI Z.S., SVANBERG S., GARNIR H.P. and DOIDGE P.S.

Abstract (from CDS):

New radiative lifetimes have been measured for the 5s 30,1,2 and 5s 11 levels of GeI using a laser-produced plasma subject to selective laser excitation. A diffraction grating based emission spectrometer of moderately high resolution has been used to remeasure the branching ratios of the 4p–5s depopulating transitions. The oscillator strengths of astrophysical interest, which have been derived from these new data, are compared with theoretical values calculated within a pseudo-relativistic Hartree–Fock approach. The new set of f-values has been compared with the few results available in the literature, which are generally characterized by a large scatter and a low accuracy. The solar photospheric abundance of germanium deduced from the new atomic data of the present work is AGe = 3.58±0.05, on the usual logarithmic scale, in agreement with the meteoritic value.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): atomic data - methods: laboratory - methods: numerical - Sun: abundances

Simbad objects: 8

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