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Table 3

ISM model parameters.

Parameter Description Values/range
Primary parameters with distinct values for each component (sector)
w Component (sector) mixing weight [0–1]
log U0 Ionization parameter(a) [−4, −3, −2, −1, 0]
log n0 (cm−3) Gas density(a) [0, 1, 2, 3, 4]
cut Depth into the cloud(b) [0 – −4] step 0.25
Primary parameters with a single value for all components (sectors)
log Z Metallicity [−2.19, −1.889, −1.1−2.−9, −1.89, −1.19, −0.889, -−0.667, −0.491, −0.19, 0.111]
log Zdust Dust-to-gas mass ratio(c) [−0.68, 0, +0.70]
log LX (L) X-ray source luminosity [−∞, −3, −2, −1]
log TX (K) X-ray source temperature [0, 5, 6, 7]
log L* (L) Stellar cluster luminosity [7, 9]
Age (Myr) Burst age [1, 2, 3, 4, 5, 6, 8, 10]
Secondary (predicted) parameters in this study
log Q(H) (s−1) Number of ionizing photons
fesc(1 – ∞) (%) Escape fraction of photons with energy range [1 – ∞] Ryd
fesc(1–1.8) (%) Escape fraction of photons with energy range [1–1.8]Ryd
fesc(1.8–4) (%) Escape fraction of photons with energy range [1.8–4]Ryd
fesc(4–20) (%) Escape fraction of photons with energy range [4–20] Ryd
fesc(20 – ∞) (%) Escape fraction of photons with energy range [20 – ∞] Ryd
MH+ (log M) Mass of H+
MH0 (log M) Mass of H0
MH2 (log M) Mass of H2
MH2,C+ (log M) Mass of H2 traced by C+
MH2,C0 (log M) Mass of H2 traced by C0
MH2,Co (log M) Mass of H2 traced by CO
Mdust (log M) Dust mass
fCII,H+ Fraction of [C ii] associated with H+
fcII,H0 Fraction of [C ii] associated with H0
fCII,H2 Fraction of [C ii] associated with H2

Notes.(a) Calculated at the illuminated face of the cloud.(b) See definition in Sect. 4.2.(c) The range [−1, 1] corresponds to the 95% envelop (in dex) around the median relationship in Galliano et al. (2021).

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