Precise Calculations of Astrophysically Important Allowed and Forbidden Transitions of Xe viii

The present work reports transition line parameters for Xe viii, which are potentially important for astrophysics in view of recent observations of multiply ionized xenon in hot white dwarfs. The relativistic coupled-cluster method is employed here to calculate the E1, E2, and M1 transition line par...

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Bibliographic Details
Published in:The Astrophysical journal 2017-02, Vol.836 (1), p.125, Article 125
Main Authors: Bhowmik, Anal, Dutta, Narendra Nath, Roy, Sourav
Format: Article
Language:English
Subjects:
Astrophysics
atomic data
Forbidden transitions
Interstellar matter
Mathematical analysis
Oscillator strengths
Parameters
plasmas
ultraviolet: stars
White dwarf stars
white dwarfs
Xenon
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Summary:The present work reports transition line parameters for Xe viii, which are potentially important for astrophysics in view of recent observations of multiply ionized xenon in hot white dwarfs. The relativistic coupled-cluster method is employed here to calculate the E1, E2, and M1 transition line parameters with high accuracy. The E1 oscillator strengths and probabilities of E2 and M1 transitions are determined using theoretical amplitudes and experimental energy values. The calculated branching ratios and the lifetimes are supplemented to the transition parameters. The accurate presentation of these calculated data is crucial for density estimation in several stellar and interstellar media.
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/836/1/125