Table 2.
Description of free and fixed parameters used for the different spatial models applied.
| Model description | N components | Fixed parameters | Free parameters |
|---|---|---|---|
| M1. One circular exponential | 1 | ϵ = 0 ; n = 1 | x; y; a; m |
| M2. One elliptical exponential | 1 | n = 1 | x; y; a; m; ϵ; θ |
| M3. Two circular exponential | 2 | ϵ1 = ϵ2 = 0; n1 = n2 = 1; | x1 = x2; y1 = y2; |
| fixed components | a1 = aUV | a2 ;m1; m2 | |
| M4. Two elliptical exponential | 2 | ϵ1 = ϵUV; θ1 = θUV | x1 = x2; y1 = y2; a2 |
| fixed components | a1 = aUV; n1 = n2 = 1; | m1; m2; ϵ2; θ2 | |
| M5. Two circular exponential | 2 | ϵ1 = ϵ2 = 0; n1 = n2 = 1 | x1 = x2; y1 = y2; |
| fixed components | a1 = aUV ± 0.1″; a2 ;m1; m2; | ||
| M6. Two elliptical exponential | 2 | n1 = n2 = 1 | x1 = x2; y1 = y2; |
| fixed components | a1 = aUV ± 0.1″; a2 ;m1; m2; | ||
| ϵ1; ϵ2; θ1; θ2 | |||
| M7. Two free circular | 2 | n1 = n2 = 1; ϵ1 = ϵ2 = 0 | x1; x2; y1; y2; a1; a2; m1; m2 |
| components | |||
| M8. Two free elliptical | 2 | n1 = n2 = 1 | x1; x2; y1; y2; a1; a2; m1; m2 |
| components | ϵ1; ϵ2; θ1: θ2 | ||
| M9. One circular exponential | 1 | n1 = 1; ϵ1 = 0 | x1; y1; a1; m1 |
| component | |||
| M10. One elliptical exponential | 1 | n1 = 1 | x1; y1; a1; m1, ϵ1, θ1 |
| component | |||
| M11. One Sersic circular exponential | 1 | x1; y1; a1; m1; n1 | |
| component |
Notes. x and y are the RA and DEC positions, m is the magnitude, a is the scale radius, n is the Sersic index, ϵ is the ellipticity, and θ is the positional angle. The models M1 and M2 are applied only on the UV images and models from M3 to M11 on Lyman-α images.
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