J/A+A/347/348 Solar abundance of iron (Grevesse+, 1999)
The solar abundance of iron and the photospheric model
Grevesse N., Sauval A.J.
<Astron. Astrophys. 347, 348 (1999)>
=1999A&A...347..348G 1999A&A...347..348G (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics ; Sun
Keywords: Atomic data - Sun: abundances - Sun: photosphere
Abstract:
Numerous papers on the solar photospheric abundance of iron have
recently been published leading to a longstanding debate concerning
rather different results obtained from the analyses of Fe I lines and,
to a lesser extent, of Fe II lines. Based on a set of 65 solar Fe I
lines, with accurate transition probabilities as well as new accurate
damping constants, we construct a new empirical photospheric model. We
succeed to reconcile abundance results obtained from low and high
excitation Fe I lines as well as from Fe II lines and derive a solar
photospheric abundance of iron, AFe=7.50±0.05, which perfectly
agrees with the meteoritic value.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 25 70 New photospheric model
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See also:
J/A+A/274/555 : Asymmetry of FeI lines in solar spectrum (Stathopoulou+ 1993)
J/A+A/340/300 : Fe II oscillator strengths (Raassen+ 1998)
J/A+AS/102/269 : Lab. and solar highly-excited levels of Fe I (Nave+ 1993)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 F6.3 --- logTau0 Logarithmic value of the optical depth
at 500nm
8- 12 I5 K T Temperature
14- 19 F6.3 0.1Pa logPe Logarithmic value of the electron pressure
(in dyne/cm2)
21- 25 F5.3 0.1Pa logPg Logarithmic value of the gas pressure
(in dyne/cm2)
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Acknowledgements: Joan Vandekerckhove
(End) Patricia Bauer [CDS] 17-Jun-1999