Widespread galactic CF+ absorption: detection toward W49 with the Plateau de Bure Interferometer

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Table 3

Line frequencies and opacity-column density conversion factors.

	C₃H₂	HCO⁺	HNC	CF⁺	HCO	H¹³CO⁺	C₂H	HF	C⁺	CH

Frequency^a	85.339	89.189	90.664	102.588	86.671	86.754	87.317	1232.476	1900.537	532.774
Factor^b	4.36E12	1.12E12	1.76E12	1.35E13	2.26E13	1.13E12	6.52E13	2.404E12	1.40E17	3.64E13

Notes.

^(a)

GHz.

^(b)

Units for all entries are cm^-2 (km s^-1)^-1.

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