ORBi: Hannaford P. - Lifetimes in Fe II and the solar abundance of iron

Reference : Lifetimes in Fe II and the solar abundance of iron


	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/135114

Title :	Lifetimes in Fe II and the solar abundance of iron
Language :	English
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 - ULg > > Département d'astrophys., géophysique et océanographie (AGO)]
	Noels-Grötsch, Arlette [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Publication date :	1992
Journal title :	Astronomy and Astrophysics
Publisher :	EDP Sciences
Volume :	259
Pages :	301-306
Audience :	International
ISSN :	0004-6361
e-ISSN :	1432-0746
City :	Les Ulis
Country :	France
Keywords :	[en] 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.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/135114
Other URL :	http://adsabs.harvard.edu/abs/1992A%26A...259..301H

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