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Table 2

NH3(1, 1) and (2, 2) fits and derived parameters in the northern and the southern local column density maxima of Oph D using the 10″ resolution map.

Source/Linea TMB 3LSR Δ3 τtotb Tex T12 Tkin N(NH3)
[K] [km s-1] [km s-1] [K] [K] [K] [1014 cm-2]
N, NH3(1, 1) 3.52  ±  0.06 3.39  ±  0.001 0.18  ±  0.003 10.37  ±  0.39 6.05  ±  0.50 8.59  ±  0.37 8.87  ±  0.56 9.60  ±  2.97
N, NH3(2, 2) 0.28  ±  0.10 3.38  ±  0.02 0.27  ±  0.05
S, NH3(1, 1) 3.33  ±  0.12 3.47  ±  0.002 0.16  ±  0.005 7.16  ±  0.52 5.70  ±  0.50 7.32  ±  0.59 7.43  ±  1.12 9.44  ±  2.75
S, NH3(2, 2) 0.12  ±  0.10 3.48  ±  0.03 0.25  ±  0.09

Notes. 

(a)

The northern peak is indicated with N, and southern with S. The exact positions of the peaks are: RA = 16h28m293, Dec =  − 24°19′03″ (J2000) for the northern and RA = 16h28m288, Dec =  − 24°19 ′23″ for the southern peak.

(b)

The sum of peak optical thicknesses of all (1, 1) hyperfine components. This is twice the “main group opacity” used in many papers.

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