Additions to the Spectrum of Fe ix in the 110–200 Å Region

Alexander N. Ryabtsev, Edward Y. Kononov, Peter R. Young*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The spectrum of eight-times ionized iron, Fe ix, was studied in the 110–200 Å region. A low inductance vacuum spark and a 3 m grazing incidence spectrograph were used for the excitation and recording of the spectrum. Previous analyses of Fe ix have been greatly extended and partly revised. The number of known lines in the 3p 53d–3p 54f and 3p 53d–3p 43d 2 transition arrays is extended to 25 and 81, respectively. Most of the identifications of the Fe ix lines from the 3p 53d–3p 43d 2 transition array in the solar spectrum have been confirmed and several new identifications are suggested.
Original languageEnglish
Article number60
Pages (from-to)1-15
Number of pages15
JournalThe Astrophysical Journal
Volume936
Issue number1
Early online date30 Aug 2022
DOIs
Publication statusPublished - 1 Sep 2022
Externally publishedYes

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