Isoelectronic behavior of resonant and intercombination lines in MgI-like ions

K. B. Fournier; W. H. Goldstein; M. Finkenthal; R. E. Bell; J. L. Terry

doi:10.1016/0368-2048(96)02976-3

Isoelectronic behavior of resonant and intercombination lines in MgI-like ions

K. B. Fournier^*
, W. H. Goldstein
, M. Finkenthal
, R. E. Bell
, J. L. Terry

^*Corresponding author for this work

Racah Institute of Physics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The observed intensity ratio of the 3s² ¹So - 3s3p ¹P₁ to the 3s² ¹So - 3s3p ³P₁ transitions in MgI-like ions has always presented those who model plasma spectra with a challenge; the observed intensity of the intercombination line is always several times greater than what simple models predict. We offer a model that takes into account the contribution to the MgI-like emission features from autoionizing levels of the adjacent All-like charge state. Models in the present work give good agreement with the observed resonant/intercombination (R/I) emission ratio only when a departure from ionization equilibrium is assumed. We also identify, for the first time, intercombination lines of the form 3s3p ¹P₁ - 3p² ³P₂ in several elements relevant to both astrophysical and magnetically-confined fusion plasmas.

Original language	English
Pages (from-to)	283-286
Number of pages	4
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	80
DOIs	https://doi.org/10.1016/0368-2048(96)02976-3
State	Published - May 1996

Access to Document

10.1016/0368-2048(96)02976-3

Cite this

@article{12446dbe525f4302aa97cb9c12608b10,

title = "Isoelectronic behavior of resonant and intercombination lines in MgI-like ions",

abstract = "The observed intensity ratio of the 3s2 1So - 3s3p 1P1 to the 3s2 1So - 3s3p 3P1 transitions in MgI-like ions has always presented those who model plasma spectra with a challenge; the observed intensity of the intercombination line is always several times greater than what simple models predict. We offer a model that takes into account the contribution to the MgI-like emission features from autoionizing levels of the adjacent All-like charge state. Models in the present work give good agreement with the observed resonant/intercombination (R/I) emission ratio only when a departure from ionization equilibrium is assumed. We also identify, for the first time, intercombination lines of the form 3s3p 1P1 - 3p2 3P2 in several elements relevant to both astrophysical and magnetically-confined fusion plasmas.",

author = "Fournier, \{K. B.\} and Goldstein, \{W. H.\} and M. Finkenthal and Bell, \{R. E.\} and Terry, \{J. L.\}",

year = "1996",

month = may,

doi = "10.1016/0368-2048(96)02976-3",

language = "אנגלית",

volume = "80",

pages = "283--286",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Isoelectronic behavior of resonant and intercombination lines in MgI-like ions

AU - Fournier, K. B.

AU - Goldstein, W. H.

AU - Finkenthal, M.

AU - Bell, R. E.

AU - Terry, J. L.

PY - 1996/5

Y1 - 1996/5

N2 - The observed intensity ratio of the 3s2 1So - 3s3p 1P1 to the 3s2 1So - 3s3p 3P1 transitions in MgI-like ions has always presented those who model plasma spectra with a challenge; the observed intensity of the intercombination line is always several times greater than what simple models predict. We offer a model that takes into account the contribution to the MgI-like emission features from autoionizing levels of the adjacent All-like charge state. Models in the present work give good agreement with the observed resonant/intercombination (R/I) emission ratio only when a departure from ionization equilibrium is assumed. We also identify, for the first time, intercombination lines of the form 3s3p 1P1 - 3p2 3P2 in several elements relevant to both astrophysical and magnetically-confined fusion plasmas.

AB - The observed intensity ratio of the 3s2 1So - 3s3p 1P1 to the 3s2 1So - 3s3p 3P1 transitions in MgI-like ions has always presented those who model plasma spectra with a challenge; the observed intensity of the intercombination line is always several times greater than what simple models predict. We offer a model that takes into account the contribution to the MgI-like emission features from autoionizing levels of the adjacent All-like charge state. Models in the present work give good agreement with the observed resonant/intercombination (R/I) emission ratio only when a departure from ionization equilibrium is assumed. We also identify, for the first time, intercombination lines of the form 3s3p 1P1 - 3p2 3P2 in several elements relevant to both astrophysical and magnetically-confined fusion plasmas.

UR - https://www.scopus.com/pages/publications/0040157557

U2 - 10.1016/0368-2048(96)02976-3

DO - 10.1016/0368-2048(96)02976-3

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:0040157557

SN - 0368-2048

VL - 80

SP - 283

EP - 286

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

ER -

Isoelectronic behavior of resonant and intercombination lines in MgI-like ions

Abstract

Access to Document

Other files and links

Fingerprint

Cite this