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Table 1

Main parameters of our CLOUDY photoionization models explored in this paper.

Parameter POPSTAR BPASS AGN POPSTAR+AGN Blackbody PopIII star
SED shape Fig. 1(a) Fig. 1(a) Fig. 1(b) Fig. 1(c) Fig. 1(d) Fig. 1(d)

Z (Z) 0.01, 0.02, 0.05, 0.05, 0.1, 0.2, 0.01, 0.02, 0.05, 0.01, 0.02, 0.05, 0.01, 0.02, 0.05, 10−4, 10−3, 0.01,
0.1, 0.2, 0.5, 0.5, 1.0 0.1, 0.2, 0.5, 0.1, 0.2, 0.5, 0.1, 0.2, 0.5, 0.02, 0.05, 0.1
1.0, 2.0 1.0, 2.0, 5.0 1.0, 2.0 1.0 1.0

logU − 3.5, − 3.0, − 2.5, − 2.0, − 1.5, − 1.0, − 0.5

nH (cm−3) 10, 102 , 103, 10, 102 , 103, 10, 102, 103 , 10, 102 , 103, 10, 102 , 103, 10, 102 , 103,
104, 105 104, 105 104, 105 104, 105 104, 105 104, 105

C/O C/H (Dopita et al. 2006), fixed C/O ratios up to 1.0 (~2 × (C/O))

Other Upper-mass α = −1.2, − 1, 4, α = −1.6 , − 1.2; Teff = 6 × 104, Zero-age,
param. of 300 M − 1.6 , − 1.8, fAGN = 0.03, 0.1 8 × 104, 1 × 105 K Salpeter IMF,
− 2.0 1–100 M

Notes. (†) Default value adopted for the inputSED model. (‡) Ages of current star-formation of 1 Myr and older are considered under the assumption of constant star-formation.

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