. Author manuscript; available in PMC: 2015 Nov 11.

Published in final edited form as: Astrophys J. 2015 Oct 10;812(1):75. doi: 10.1088/0004-637X/812/1/75

Table 1.

Spectroscopic parameters of the lines discussed in this work

Species	Transition	Frequency (GHz)	E_u/k (K)	A_ij (s⁻¹)
¹²C⁺	²P_3/2-²P_1/2	1900.5369^a	91.21	2.32(−6)
¹³C⁺	²P_3/2-²P_1/2
	F=1-0	1900.9500^a,^b	91.23	1.55(−6)
	F=2-1	1900.4661^a,^b	91.25	2.32(−6)
	F=1-1	1900.1360^a,^b	91.23	7.73(−7)
CO	J=2-1	230.5379	16.60	6.92(−7)
H41α	n=42-41	92.0344^c	89.50	4.85(+1)

Note. — From Cooksy et al. (1986).

See Ossenkopf et al. (2013) for corrected relative line-strengths.