Fig. 5


Illustration of the correlation between N and σV estimations when a single line (13CO(1−0)) is available. The blue points in the scatter plots show the estimations of N and σV obtained with a Monte Carlo simulation of individual spectra that share the same physical parameters and different realizations of a white Gaussian noise with standard deviation σb = 100 mK. The parameters are Tex = 18 K, N = 1017.5 cm−2, ΔV = 1.1 km s−1, and σV = 0.61 km s−1.

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