Article (Scientific journals)
Lifetimes in Fe II and the solar abundance of iron
Hannaford, P.; Lowe, R. M.; Grevesse, Nicolas et al.
1992In Astronomy and Astrophysics, 259, p. 301-306
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Keywords :
ABUNDANCE; IRON; METALLICITY; RADIATIVE LIFETIME; SOLAR SPECTRA; ATOMIC SPECTRA; TRANSITION PROBABILITIES
Abstract :
[en] New atomic lifetimes have been determined for eight quartet (z 4D, z 4F) levels and ten sextet (z 6D, z 6F, z 6P) levels in Fe II and the results for seven of these levels have been combined with existing experimental branching fractions to obtain a revised set of log gf-values for 15 solar lines in Fe II. The new log gf data are used together with equivalent widths determined from the Liege solar atlas to derive a value for the iron photospheric abundance: 7.48 +/- 0.04, which is consistent with the currently accepted meteoritic result, 7.51 +/- 0.01. The results are compared with the atomic lifetime data, log gf data and solar analyses used in three other recent solar abundance determinations based on Fe II lines.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Hannaford, P.;  CSIRO, Div. of Materials Science and Technology, Clayton, Australia
Lowe, R. M.;  CSIRO, Div. of Materials Science and Technology, Clayton, Australia
Grevesse, Nicolas ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO)
Noels-Grötsch, Arlette ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Language :
English
Title :
Lifetimes in Fe II and the solar abundance of iron
Publication date :
1992
Journal title :
Astronomy and Astrophysics
ISSN :
0004-6361
eISSN :
1432-0746
Publisher :
EDP Sciences, Les Ulis, France
Volume :
259
Pages :
301-306
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 November 2012

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