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Table 1.
CIGALE modules and input parameters used for to create the 88 million models.
| Parameters | Symbol | Fit w/o lines | Fit w/ lines |
|---|---|---|---|
| Target sample | SPT DSFGs | SPT DSFGs | |
| Delayed SFH and recent burst | |||
| e-folding time scale of the delayed SFH | τmain [Myr] | 500 | 500 |
| Age of the main population | Agemain[Myr] | 10 | 10 |
| Burst | fburst | No burst | No burst |
| SSP | |||
| SSP | BC03 | BC03 | |
| Initial mass function | IMF | Chabrier | Chabrier |
| Metallicity | Z | 0.02 | 0.02 |
| Nebular emission | |||
| Ionization parameter | logU | – | 31 values in [−4.0, −1.0]with δlog U = 0.1 |
| Gas metallicity | zgas | – | 0.0001, 0.001, 0.0025, 0.005, 0.007, 0.008, 0.011, 0.014, 0.016, 0.019, 0.022, 0.025, 0.03, 0.033, 0.037, 0.041, 0.046, 0.051 |
| Electron density | ne | – | 10, 100, 1000 |
| Line width [km s−1] | – | – | 200 |
| Dust attenuation law (dustatt_modified_CF00) | |||
| V-band attenuation in the interstellar medium | Av_ISM | 10 | 10 |
| Av_ISM / (Av_BC+Av_ISM) | mu | 0.44 | 0.44 |
| Power law slope of the attenuation in the ISM | slope_ISM | −0.7 | −0.7 |
| Power law slope of the attenuation in the birth clouds | slope_BC | −1.3 | −1.3 |
| Dust emission (casey2012) | |||
| Temperature of the dust in K | temperature | 31 values in [30., 90.] | 31 values in [30., 90.] |
| Emissivity index of the dust | beta | 21 values in [1.0, 3.5] | 21 values in [1.0, 3.5] |
| Mid-infrared powerlaw slope | alpha | 2.0 | 2.0 |
| Redshifting | |||
| Redshift | redshift | 81 values in [0.0, 8.0] | 81 values in [0.0, 8.0] |
| No AGN emission | |||
Notes. CF00 means Charlot & Fall (2000), BC03 means Bruzual & Charlot (2003), Casey2012 means Casey (2012), and the Chabrier IMF refers to Chabrier (2003).
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