SiH+, v = 1 – 0
Silylidynium, X 1Σ+, v = 1 – 0
Species tag 029522
Version1*
Date of EntryOct. 2017
ContributorH. S. P. Müller

The rotational and rovibrational transitions were reported in
(1) J. L. Doménech, S. Schlemmer, and O. Asvany, 2017, Astrophys. J. 849, Art. No. 60.
The ab initio transition dipole moment was reported in
(2) P. D. Singh and G. Vanladingham, 1978, Astron. Astrophys. 66, 87.
Low-J transition frequencies should be reliable.
Lines Listed41
Frequency / GHz< 68964
Max. J21
log STR0-100.0
log STR1-10.0
Isotope Corr.-0.0
Egy / cm–10.0
 µa / D0.108
 µb / D 
 µc / D 
 A / MHz 
 B / MHz226551.16
 C / MHz 
 Q(2000.)230.8183
 Q(1000.)97.9230
 Q(500.0)46.6549
 Q(300.0)28.0065
 Q(225.0)21.0741
 Q(150.0)14.1535
 Q(75.00)7.2461
 Q(37.50)3.8040
 Q(18.75)2.1019
 Q(9.375)1.2998
 Q(5.000)1.0388
 Q(2.725)1.0010
detected in ISM/CSMno

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