Herschel HIFI observations of the Sgr A +50 km s-1 Cloud - Deep searches for O2 in emission and foreground absorption

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Table 2

Summary of observed absorption lines and Gaussian fits.

Species	Transition	Frequency	V	T _A	ΔV	^∫T_AdV
		(GHz)	(km s^-1)	(K)	(km s^-1)	(K km s^-1)

HCl⁺	1₁₁−0₀₀	484.232	−51.4	−0.0067	5.7	−0.039
			−3.5	−0.0088	4.9	−0.043 ^a
			+ 4.2	−0.0006	5.3	−0.003 ^a
HCl⁺	1₁₁−0₀₀	485.418	−51.2	−0.0152	5.7	−0.091
			−3.4	−0.0285	6.1	−0.174 ^a
			+ 5.6	−0.0074	6.7	−0.050 ^a
T1 (O₂?	3₃−1₂)	487.249	−32.6	−0.0025	7.5	−0.018
			−7.1	−0.0034	4.7	−0.016
U1 (HDCO?	5_4,1−6_3,4)	771.365	−3.6	−0.0459	5.3	−0.243 ^a
			+ 3.8	−0.0201	8.9	−0.179 ^a

Notes. T and U stand for tentative and unidentified, respectively

^(a)

From Gaussian fits.

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