Fe+
singly ionized iron atom, 6D ground state
Species tag 056517
Version1*
Date of EntryAug. 2010
ContributorH. S. P. Müller

Energy levels and transitions of singly ionized atomic iron have been determined with high accuracy from extensive visible and UV measurements in
(1) M. Aldenius and S. Johansson, 2007, Astron. Astrophys. 467, 753.
The frequencies of the two highest energy, lowest frequency components were determined by laser magnetic resonance in
(2) J. M. Brown, H. Körsgen, and K. M. Evenson, 1998, Astrophys. J. 441, 927.
The Einstein A values were taken from (2).
Lines Listed4
Frequency / GHz< 11536
Max. J5
log STR0-4.0
log STR1-4.0
Isotope Corr.-0.0374
Egy / cm–10.0
 µa / D 
 µb / D 
 µc / D 
 A / MHz 
 B / MHz 
 C / MHz 
 Q(2000.)22.9180
 Q(1000.)18.5414
 Q(500.0)13.9767
 Q(300.0)11.5901
 Q(225.0)10.7870
 Q(150.0)10.2107
 Q(75.00)10.0050
 Q(37.50)10.0000
 Q(18.75)10.0000
 Q(9.375)10.0000
 Q(5.000)10.0000
 Q(2.725)10.0000
detected in ISM/CSMno

Database maintained by Holger S. P. Müller and Sven Thorwirth, programming by D. Roth and F. Schlöder