Open Access
Table E.1.
CIGALE adopted parameters and properties to fit the SEDs of the target ETGs.
| Parameter | Value | Units | Description |
|---|---|---|---|
| SFH: sfhdelayed module | |||
| t | 0–13 400 | Myr | SFH range |
| τ | 100, 300, 500, 800, 1000, | Myr | e-folding timescale of SF |
| 1500, 2000, 2500, 3000, 4000, 5000 | |||
| SSPs: uvupturn module | |||
| Z | 0.01, 0.02, 0.04 | Metallicity | |
| T | 0 (no Upturn), 25 000, 35 000, 40 000 | K | Temperature of the upturn component |
| f | 0 | Fuel parameter. 0: low fuel, 1: high fuel. | |
| Dust Attenuation: dustatt_modified_starburst module | |||
| E(B − V)young | 0.0, 0.005, 0.01, 0.02, 0.05, 0.1, 0.3, | Stellar colour excess of the young populations. | |
| 0.4, 0.5, 0.7, 0.8, 0.9, 1.0 | mag | ||
| E(B − V)old | 0, 0.0025, 0.005, 0.01, 0.025, 0.05, | Stellar colour excess of the old populations. | |
| 0.15, 0.2, 0.25, 0.35, 0.4, 0.45, 0.5 | mag | ||
| E(B − V) factor | 0.5 | mag | Conversion factor between young and old. |
| uv_bump_amplitude | 3 | Amplitude of the UV bump | |
| powerlaw_slope | −0.25 | Slope δ of the attenuation powerlaw | |
| Dust emission: themis module | |||
| qhac | 0.02, 0.06, 0.14, 0.17, | Mass fraction of hydrocarbons solids (HAC) | |
| 0.2, 0.24, 0.32, 0.4 | |||
| Umin | 0.1, 0.3, 0.5, 0.8, 1.2, 1.5, 2, 2.5, | Minimum radiation field | |
| 3, 3.5, 6, 10, 17, 30, 50, 80 | Habing | ||
| α | 1.0, 1.5, 2.0, 2.5 | powerlaw slope | |
| γ | 0, 0.001, 0.002, 0.004, 0.008, | Fraction illuminated from Umin to Umax | |
| 0.016, 0.031, 0.063, 0.13, 0.25, 0.5 | |||
| Properties | |||
| sfh.sfr | from CFHT-Hα images | M⊙/yr | 5σ upper limit on SFR. |
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