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The FERRUM project:...
The FERRUM project: Branching ratios and atomic transition probabilities of Fe II transitions from the 3d6(a 3F)4p subconfiguration in the visible to VUV spectral region
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Pickering, J. C. (författare)
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- Johansson, Sveneric (författare)
- Lund University,Lunds universitet,Astronomi - Genomgår omorganisation,Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation,Naturvetenskapliga fakulteten,Lund Observatory - Undergoing reorganization,Department of Astronomy and Theoretical Physics - Undergoing reorganization,Faculty of Science
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Smith, P. L. (författare)
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(creator_code:org_t)
- 2001-10-15
- 2001
- Engelska.
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Ingår i: Astronomy & Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 377, s. 361-367
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Abstract
Ämnesord
Stäng
- We report measurements of the relative intensities of 81 emission linesof Fe II between 160 nm and 350 nm (62 168 cm-1 to 28 564cm-1) from 4 levels by high resolution Fourier transformspectrometry, using a Penning discharge lamp as light source. Theserelative intensities have been used to determine the line branchingfractions, which have then been combined with accurate experimentalradiative lifetime measurements reported recently to give absolutetransition probabilities and oscillator strengths for 81 lines. Theaccuracy of these f-values is compared with other previous experimentalmeasurements, and with theoretical values. The new transitionprobabilities will allow accurate determinations of Fe II abundances ina wide variety of astrophysical objects. Tables 2 and 3 are onlyavailable in electronic form at the CDS via anonymous ftp tocdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/377/361
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- ATOMIC DATA
- LINE: IDENTIFICATION
- TECHNIQUES: SPECTROSCOPIC
- STARS: ABUNDANCES
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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