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Table 1.
Models and the values for their free parameters used by X-CIGALE for the SED fitting of our galaxy sample.
| Parameter | Model/values |
|---|---|
| Star formation history: delayed model with recent, constant burst/quench | |
| Age of the main population | 5000, 7000, 9000, 10 000, 11 000, 12 000 Myr |
| e-folding time | 1000, 3000, 5000, 7000, 9000, 10 000, 11 000, 12 000 Myr |
| Age of the burst/quench | 50, 100 Myr |
| Ratio of the SFR after/before the burst/quench episode | 0.01, 0.2, 0.8, 0.9, 1.0, 1.005, 1.015, 1.05, 1.10, 1.15, 1.20 |
| Simple stellar population: Bruzual & Charlot (2003) | |
| Initial mass function | Salpeter |
| Metallicity | 0.02 (Solar) |
| Galactic dust extinction | |
| Dust attenuation law | Charlot & Fall (2000) |
| Reddening AV in the ISM | 0.001, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.8, 1.0, 1.5 |
| Galactic dust emission: Dale et al. (2014) | |
| α slope in dMdust ∝ U−αdU | 2.0 |
| AGN module: SKIRTOR | |
| Torus optical depth at 9.7 microns τ9.7 | 3, 7, 11 |
| Torus density radial parameter p (ρ ∝ r−pe−q|cos(θ)|) | 1.0 |
| Torus density angular parameter q (ρ ∝ r−pe−q|cos(θ)|) | 1.0 |
| Angle between the equatorial plan and edge of the torus | 40° |
| Ratio of the maximum to minimum radii of the torus | 20 |
| Viewing angle | 50°, 70°, 90° (type 2) |
| Accretion disk spectrum | Schartmann et al. (2005) |
| AGN fraction | 0.0, 0.01, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 |
| Extinction law of polar dust | SMC |
| E(B − V) of polar dust | 0.0, 0.2, 0.4 |
| Temperature of polar dust (K) | 100 |
| Emissivity of polar dust | 1.6 |
Notes. For the definitions of the various parameters, see Sect. 3.1.
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