Year: 2000
Type: article
Abstract: Lifetime measurements are reported for levels arising from the 5 s 2 5 d and 5 s 2 4 f configurations in Sn II. Measured decay curves were jointly analyzed using the Arbitrarily Normalized Decay Curve (ANDC) method to remove the effects of cascade repopulation from the determination of the lifetimes of the 5 s 2 5 d 2 D 3/2 level. The branching ratio of the decay of this level to the ground term fine-structure levels 2 P 1/2 and 2 P 3/2 was carefully measured, and we have obtained an accurate value for the absorption oscillator strength of the resonance transition to this level at 1400.52 Å. The results are discussed in the context of interpreting vacuum ultraviolet absorption spectra observed with the Goddard High Resolution Spectrograph on board the Hubble Space Telescope .
Source: The Astrophysical Journal
DOI: 10.1086/309534
Authors: R. M. Schectman, S. Cheng, L. J. Curtis, S. R. Federman, M. C. Fritts, R. E. Irving
Institution: University of Toledo
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2139063364