singly ionized silicon atom, 2P ground state
Species tag 028518
Date of EntryAug. 2010
ContributorH. S. P. Müller

The frequency of the J = 1.5 – 0.5 line of singly ionized atomic silicon is from an astronomical observation by
(1) H. Feuchtgruber et. al., 1997, Astrophys. J. 487, 962.
The Einstein A value is from an ab initio calculation by
(2) C. Froese Fischer, 2002, unpublished;
cited in
(3) D. E. Kelleher and L. I. Podobedova, 2008, J. Phys. Chem. Ref. Data 37, 1235.

Lines Listed1
Frequency / GHz< 8611
Max. J2
log STR0-4.0
log STR1-4.0
Isotope Corr.-0.0352
Egy / cm–10.0
 µa / D 
 µb / D 
 µc / D 
 A / MHz 
 B / MHz 
 C / MHz 
detected in ISM/CSMyes

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