Fig. 14
Left: integrated column density NHI of the NEP field which is part of the GHIGLS survey. NHI was computed in the optically thin approximation (see Eq. (17)). Middle: integrated column density ÑHI of NEP inferred with ROHSA. Right: residual ÑHI–NHI between the integrated column density field inferred with ROHSA and the original integrated column density field computed with the data.
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