Table 4.
Summary of the model parameters sampled in the hierarchical inference on the SLACS sample of Sect. 6.
| Name | Prior | Description |
|---|---|---|
| Cosmology (Flat ΛCDM) | ||
| H0 [km s−1 Mpc−1] | =73 | Hubble constant |
| Ωm | =0.3 | Current normalized matter density |
| Mass profile | ||
| λint, 0 | 𝒰([0.5, 1.5]) | Internal MST population mean for reff/θE = 1 |
| αλ | 𝒰([−1, 1]) | Slope of λint with reff/θE of the deflector (Eq. (50)) |
| σ(λint) | 𝒰([0, 0.5]) | 1-σ Gaussian scatter in the internal MST from SDSS |
| Stellar kinematics | ||
| ⟨aani⟩ | 𝒰([0.1, 5]) | Scaled anisotropy radius (Eqs. (51) and (52)) |
| σ(aani) | 𝒰([0, 1]) | σ(aani)⟨aani⟩ is the 1-σ Gaussian scatter in aani |
| Normalization of IFU data | ||
| λifu | 𝒰([0.5, 1.5]) | Internal MST population constraint from IFU data |
| σ(λifu) | 𝒰([0, 0.5]) | 1-σ Gaussian scatter in λifu |
| Line of sight | ||
| κext | p(κext) of individual lenses (Fig. 9) | External convergence of lenses |
Notes. The SLACS-only analysis is for the purpose of illustrating the constraining power on the mass profile and to assess consistencies with the TDCOSMO sample. For this purpose, we fix the cosmology to a fiducial value in the SLACS-only inference.
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