Table 3
Parameters of the SPIPS model of RS Pup.
| Parameter | Value ± σstat ± σsyst |
|
|
|
| θ0 (mas)a | 0.8490 ± 0.0034 ± 0.0120 |
| ⟨ θ ⟩ (mas)a | 0.9305 ± 0.0034 ± 0.0120 |
| vγ (km s-1) | 25.423 ± 0.200 |
| E(B−V) | 0.4961 ± 0.0060 |
| K excess | 0.027 ± 0.011 |
| H excess | 0.016 ± 0.011 |
| p-factor | 1.250 ± 0.034 ± 0.054 |
| MJD0 | 45 838.0313 ± 0.098 |
| Period (days)b | 41.438138 ± 0.00070 |
| Period change (s/year)c | +114.8 |
| Distance (pc) | 1910 ± 80 (fixed) |
|
|
|
| Radius (R⊙) | 191 (164/208) |
| Eff. temperature (K) | 5060 (4640/5850) |
| Bolom. luminosity (L⊙) | 21 700 (14 200/29 500) |
| Bolometric magnitude | −6.072 (−6.434/−5.640) |
Notes. The upper part of the table lists the primary model parameters, and the lower part gives derived physical parameters (mean value and minimum/maximum over the pulsation cycle).
θ0 is the limb-darkened disk (Rosseland) angular diameter at phase zero, and ⟨ θ ⟩ the phase-average mean angular diameter over the pulsation cycle.
Rate of period change as shown in Fig. 4.
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