Table 2.
Best-fit and marginalized values with 1σ uncertainties for the near-infrared light modeling of the BGG in CSWA 31.
| Sérsic profile 1 (BGG) |
Sérsic profile 2 (BGG) |
|||
|---|---|---|---|---|
| Parameter | Best-fit value | Marginalized value | Best-fit value | Marginalized value |
| x [arcsec] | 72.342 |
 |
72.561 |
 |
| y [arcsec] | 65.505 |
 |
65.157 |
 |
| q | 0.570 |
 |
0.935 |
 |
| θPA [°] | 116.204 |
 |
−23.190 |
 |
| A [mag arcsec−2] | 0.117 |
 |
1.281 |
 |
| Reff [arcsec] | 3.850 |
 |
0.471 |
 |
| n | 1.092 |
 |
1.297 |
 |
Notes. The centroid coordinates x and y follow the orientation displayed in the Fig. 1. q is the axis ratio, A is the amplitude, θPA is the position angle measured counterclockwise from the x-axis, Reff is the effective radius, and n is the Sérsic index. We adopted the value Reff = 3.85″ of the first Sérsic profile as the effective radius of the BGG, since this first profile dominates the overall light distribution. This corresponds to Reff = 27.2 kpc.
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