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Table 2.
Summary of parameter values used in modules for SED fitting.
| Property | Parameter | Unit | Values | Description |
|---|---|---|---|---|
| module | ||||
| SFH | tau_main | Gyr | (1, 2, 3, 4, 5, 7.5, 10) | e-folding time of the main stellar population model |
| sfhdelayedbq | age_main | Gyr | 12.7 | Age of the main stellar population in the galaxy |
| age_bq | Myr | (10, 25, 50, 75, 100, | Age of the burst/quench episode | |
| 300, 500) | ||||
| r_sfr | – | (0, 0.05, 0.1, 0.5, 0.8, | Ratio of the SFR after/before age_bq | |
| 1, 2, 5, 7, 10, 25, 50, | ||||
| 75, 100) | ||||
| Stellar population | imf | – | 1 | IMF from Chabrier (2003) |
| bc03 | metallicity | – | (0.008, 0.02) | stellar metallicity (0.4 solar or solar) |
| Nebular emission | logU | – | −2.0 | Ionization parameter |
| nebular | zgas | – | 0.02 | gas metallicity (solar) |
| ne | cm−3 | 100 | Electron density | |
| f_esc | – | 0 | Fraction of Lyman continuum escaping the galaxy | |
| f_dust | – | 0 | Fraction of Lyman continuum absorbed by dust | |
| lines_width | km.s−1 | 300 | ||
| Dust attenuation | Av_ISM | mag | [0.05, 1.5] in 15 steps | V-band attenuation in the ISM |
| dustatt_modified_CF00 | mu | – | (0.2, 0.3, 0.4) | Av_ISM / (Av_BC+Av_ISM) |
| slope_ISM | – | −0.7 | Slope of the attenuation in the ISM | |
| slope_BC | – | −1.3 | Slope of the attenuation in the birth clouds | |
| Dust emission | qpah | – | (2.5, 3.90, 5.26) | Mass fraction of PAH |
| dl2014 | umin | Habing | (0.1, 1.0, 5.0, 10.0, | Minimum radiation field |
| 50.0) | ||||
| alpha | – | 2.0 | Powerlaw slope dU/dM ∝ Uα | |
| gamma | – | 0.1 | Fraction illuminated from Umin to Umax | |
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