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High Excitation Rydberg Levels of Fe I from the ATMOS Solar Spectrum at 2.5 and 7 micronsThe quadrupole-polarization theory has been applied to the 3d(sup 6)4S(D-6)4f and 5g subconfigurations of Fe I by a parametric fit, and the fitted parameters are used to predict levels in the 6g and 6h subconfigurations. Using the predicted values, we have computed the 4f-6g and 5g-6h transition arrays and made identifications in the ATMOS infrared solar spectrum. The newly identified 6g and 6h levels, based on ATMOS wavenumbers, are combined with the 5g levels and found to agree with the theoretical values with a root mean-squared-deviation of 0.042/ cm. Our approach yields a polarizability of 28.07 a(sub o, sup 2) and a quadrupole moment of 0.4360 +/- 0.0010 ea(sup 2, sub o) for Fe II, as well as an improved ionization potential of 63737.700 +/- 0.010/ cm for Fe I.
Document ID
19990100910
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schoenfeld, W. G.
(Massachusetts Univ. Amherst, MA United States)
Chang, E. S.
(Massachusetts Univ. Amherst, MA United States)
Geller, M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA United States)
Johansson, S.
(Lund Univ. Sweden)
Nave, G.
(Lund Univ. Sweden)
Sauval, A. J.
(Belgian Royal Observatory Brussels, Belgium)
Grevesse, N.
(Institut d'Astrophysique Cointe-Ougree, Belgium)
Date Acquired
August 19, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Astronomy and Astrophysics
Publisher: Springer Verlag
Volume: 301
Subject Category
Solar Physics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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