Linear filament and nested cluster evolution tomography (LANCET) - I. Capture the evolution of dense gas in 14-parsec filament G316.8

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Volume 708 (April 2026)

A&A, 708 (2026) A251

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Table 3

Parameterization of the regional column density map.

Subregion	N-PDF Fitting: lognormal + PLT(s)						Δ-variance
Subregion		μ	σ	b₁	s₁	b₂	s₂	α₁	α₂
Young	${1.16}_{- 1.13}^{+ 2.38}$ $Mathematical equation: $\[1.16_{-1.13}^{+2.38}\]$$	${0.59}_{- 0.25}^{+ 0.28}$ $Mathematical equation: $\[0.59_{-0.25}^{+0.28}\]$$	$- {0.20}_{- 0.07}^{+ 0.18}$ $Mathematical equation: $\[-0.20_{-0.07}^{+0.18}\]$$	$- {1.20}_{- 0.08}^{+ 0.08}$ $Mathematical equation: $\[-1.20_{-0.08}^{+0.08}\]$$	2.80	−	2.7(0.2)	2.3(0.2)
Intermediate							1.9(0.1)	2.1(0.2)
Evolved	${2.30}_{- 2.39}^{+ 2.35}$ $Mathematical equation: $\[2.30_{-2.39}^{+2.35}\]$$	${1.17}_{- 0.54}^{+ 0.37}$ $Mathematical equation: $\[1.17_{-0.54}^{+0.37}\]$$	$- {0.50}_{- 0.07}^{+ 0.10}$ $Mathematical equation: $\[-0.50_{-0.07}^{+0.10}\]$$	$- {1.00}_{- 0.01}^{+ 0.01}$ $Mathematical equation: $\[-1.00_{-0.01}^{+0.01}\]$$	${3.15}_{- 0.04}^{+ 0.03}$ $Mathematical equation: $\[3.15_{-0.04}^{+0.03}\]$$	$- {7.18}_{- 0.72}^{+ 0.76}$ $Mathematical equation: $\[-7.18_{-0.72}^{+0.76}\]$$	1.5(0.1)	1.4(0.0)

Notes. Columns 2–7 list the MCMC fitting parameters for the quiet ( $young+ \frac{1}{2} intermediate$ $Mathematical equation: $\[\text{young+}\frac{1}{2}\text{intermediate}\]$$ ) and active ( $\frac{1}{2} intermediate+evolved$ $Mathematical equation: $\[\frac{1}{2}\text{intermediate+evolved}\]$$ ) regions. The quoted values denote the median (50th percentile) with the 16th and 84th percentiles. Columns 8–9 present the two power-law slopes of Δ-variance for the three subregions in α₁ and α₂.

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