InnerShell Absorption Lines of Fe 6Fe 16: a ManyBody Perturbation Theory Approach
Abstract
We provide improved atomic calculation of wavelengths, oscillator strengths, and autoionization rates relevant to the 2 > 3 innershell transitions of Fe VIXVI, the socalled Fe Mshell unresolved transition array (UTA). A second order manybody perturbation theory is employed to obtain accurate transition wavelengths, which are systematically larger than previous theoretical results by 1545 mA. For a few transitions of Fe XVI and Fe XV where laboratory measurements exist, our new wavelengths are accurate to within a few mA. Using these new calculations, the apparent discrepancy in the velocities between the Fe Mshell UTA and other highly ionized absorption lines in the outflow of NGC 3783 disappears. The oscillator strengths in our new calculation agree well with the previous theoretical data, while the new autoionization rates are significantly larger, especially for lower charge states. We attribute this discrepancy to the missing autoionization channels in the previous calculation. The increased autoionization rates may slightly affect the column density analysis of the Fe Mshell UTA for sources with high column density and very low turbulent broadening. The complete set of atomic data is provided as an electronic table.
 Authors:
 Publication Date:
 Research Org.:
 Stanford Linear Accelerator Center (SLAC)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 878002
 Report Number(s):
 SLACPUB11632
astroph/0512410; TRN: US200609%%11
 DOE Contract Number:
 AC0276SF00515
 Resource Type:
 Technical Report
 Country of Publication:
 United States
 Language:
 English
 Subject:
 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; IRON; AUTOIONIZATION; CHARGE STATES; M SHELL; OSCILLATOR STRENGTHS; PERTURBATION THEORY; ENERGYLEVEL TRANSITIONS; Astrophysics,ASTRO
Citation Formats
Gu, Ming F., /KIPAC, Menlo Park, Holczer, Tomer, Behar, Ehud, /Technion, Kahn, Steven M., and /KIPAC, Menlo Park. InnerShell Absorption Lines of Fe 6Fe 16: a ManyBody Perturbation Theory Approach. United States: N. p., 2006.
Web. doi:10.2172/878002.
Gu, Ming F., /KIPAC, Menlo Park, Holczer, Tomer, Behar, Ehud, /Technion, Kahn, Steven M., & /KIPAC, Menlo Park. InnerShell Absorption Lines of Fe 6Fe 16: a ManyBody Perturbation Theory Approach. United States. doi:10.2172/878002.
Gu, Ming F., /KIPAC, Menlo Park, Holczer, Tomer, Behar, Ehud, /Technion, Kahn, Steven M., and /KIPAC, Menlo Park. Tue .
"InnerShell Absorption Lines of Fe 6Fe 16: a ManyBody Perturbation Theory Approach". United States.
doi:10.2172/878002. https://www.osti.gov/servlets/purl/878002.
@article{osti_878002,
title = {InnerShell Absorption Lines of Fe 6Fe 16: a ManyBody Perturbation Theory Approach},
author = {Gu, Ming F. and /KIPAC, Menlo Park and Holczer, Tomer and Behar, Ehud and /Technion and Kahn, Steven M. and /KIPAC, Menlo Park},
abstractNote = {We provide improved atomic calculation of wavelengths, oscillator strengths, and autoionization rates relevant to the 2 > 3 innershell transitions of Fe VIXVI, the socalled Fe Mshell unresolved transition array (UTA). A second order manybody perturbation theory is employed to obtain accurate transition wavelengths, which are systematically larger than previous theoretical results by 1545 mA. For a few transitions of Fe XVI and Fe XV where laboratory measurements exist, our new wavelengths are accurate to within a few mA. Using these new calculations, the apparent discrepancy in the velocities between the Fe Mshell UTA and other highly ionized absorption lines in the outflow of NGC 3783 disappears. The oscillator strengths in our new calculation agree well with the previous theoretical data, while the new autoionization rates are significantly larger, especially for lower charge states. We attribute this discrepancy to the missing autoionization channels in the previous calculation. The increased autoionization rates may slightly affect the column density analysis of the Fe Mshell UTA for sources with high column density and very low turbulent broadening. The complete set of atomic data is provided as an electronic table.},
doi = {10.2172/878002},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 17 00:00:00 EST 2006},
month = {Tue Jan 17 00:00:00 EST 2006}
}

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