Transitions from Autoionized Single-ionized Tin States: A Theoretical Study of the 5s5p (3Po) nl (nl = 5d, 6s) Levels of Sn II

Details Transitions from Autoionized Single-ionized Tin States: A Theoretical Study of the 5s5p (3Po) nl (nl = 5d, 6s) Levels of Sn II Transitions from Autoionized Single-ionized Tin States: A Theoretical Study of the 5s5p (3Po) nl (nl = 5d, 6s) Levels of Sn II

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...595..550a&link_type=abstract

The Astrophysical Journal, Volume 595, Issue 1, pp. 550-554.

Astronomy and Astrophysics

Astronomy

8

Atomic Data, Methods: Laboratory

Scientific paper

Lines corresponding to several transitions from autoionized states of single-ionized tin were identified in a laser-produced plasma generated by 10640 Å irradiation of an Sn target at a flux of 2×1010 W cm-2. Spectra were recorded and analyzed between 2000 and 7000 Å. Theoretical analysis of Sn II was extended using relativistic Hartree-Fock calculations and configuration interactions in an intermediate-coupling scheme with the support of the Cowan code. Our calculations support the experimental value obtained by Schectman et al. in 2000 of the lifetime of 5s25d2D3/2 and the absorption oscillator strength of the resonance transition to this level at 1400.45 Å. The parametric description of 5s5p (3Po) nl (nl=5d, 6s) of Sn II levels is improved by taking into account the far 5p3 configuration mixing effects. The results obtained in this study will allow a substantial improvement in the interpretation of the data of the ultraviolet spectrum of Sn II observed by the Goddard High Resolution Spectrograph aboard the Hubble Space Telescope.

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