Table 4
Structural parameters (median values of the marginalized posterior distributions) for Sextans stars in the RHB, BHB and BSs evolutionary phases, derived with the MCMC Hammer when modelling the surface number density of Sextans stellar populations as a Plummer profile.
| Parameter | RHB | BHB | Bright BSs | Faint BSs |
|
|
||||
| α2000 (°) |
|
|
|
|
| δ2000 (°) |
|
|
|
|
| Ellipticity |
|
|
|
|
| Position angle (°) |
|
|
|
|
| 2D Half-light rh (′) |
|
|
|
|
|
1.12 | 1.27 | 0.96 | 1.20 |
| N° stars analysed | 2022 | 212 | 820 | 569 |
Notes. For completeness, we list also the of the best-fitting model and the number of stars analysed.
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