Laboratory identification of the 3S(2)3P(2) (3)P2,1-3S3P(3) (5)S2(0) intersystem lines of S III
1984; IOP Publishing; Volume: 277; Linguagem: Inglês
10.1086/184208
ISSN1538-4357
AutoresPeter L. Smith, Cecilia Magnusson, Per Olof Zetterberg,
Tópico(s)Stellar, planetary, and galactic studies
Resumoview Abstract Citations (25) References (14) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Laboratory identification of the 3S 2 3P 2 3P2.1 - 3S 3P3 5S 2 intersystem lines of S III. Smith, P. L. ; Magnusson, C. E. ; Zetterberg, P. O. Abstract The spin-changing triple-quintet intersystem lines of S III have been identified in laboratory spectra for the first time. The wavelengths are 1728.939 and 1713.117 A with an uncertainty of plus-or-minus 5 mA. These values are about 250 times more precise than those from the IUE spectra of the Io torus where these lines were first detected. The 1728.939 line is coincident with strong, previously unidentified features in the spectrum of the sun, RR Tel, and V 1016 Cyg. The 1713.117 line and an Fe II line at 1712.997 A form barely resolvable doublets in the latter two spectra. The S III intersystem lines are likely to be density sensitive and therefore a potential new diagnostic for astrophysical plasmas. Publication: The Astrophysical Journal Pub Date: February 1984 DOI: 10.1086/184208 Bibcode: 1984ApJ...277L..79S Keywords: Atomic Spectra; Line Spectra; Sulfur; Ultraviolet Astronomy; Ultraviolet Spectra; Atomic Energy Levels; Cosmic Plasma; Io; Iue; Plasma Diagnostics; Solar Spectra; Astrophysics full text sources ADS | data products SIMBAD (2)
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