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Table 2
SCEPtER median (q50) and 1σ envelope boundaries (q16 and q84) for age relative error as a function of the relative age of the star.
| Relative age | ||||||||||
| 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1.0 | |
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| Standard | ||||||||||
| q 16 | –65.3 | –56.7 | –39.1 | –30.2 | –24.5 | –21.8 | –19.9 | –21.2 | –18.8 | –13.0 |
| q 50 | 5.9 | 2.5 | 1.2 | 1.3 | 0.7 | 0.5 | 0.6 | 0.2 | –0.2 | –0.4 |
| q 84 | 127.8 | 69.6 | 48.5 | 36.8 | 30.4 | 26.5 | 24.8 | 25.7 | 20.1 | 13.2 |
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| σ(Teff) = 50 K | ||||||||||
| q 16 | –62.2 | –46.3 | –31.0 | –23.7 | –18.8 | –16.6 | –14.9 | –15.8 | –13.9 | –9.6 |
| q 50 | 4.7 | 2.7 | 2.0 | 1.0 | 0.2 | 0.2 | 0.1 | 0.0 | –0.0 | –0.3 |
| q 84 | 100.1 | 55.9 | 38.1 | 28.6 | 21.7 | 18.3 | 17.4 | 18.9 | 14.7 | 9.8 |
|
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| σ( [ Fe/H ]) = 0.05 dex | ||||||||||
| q 16 | –62.5 | –48.4 | –33.7 | –25.9 | –22.2 | –19.3 | –17.8 | –19.2 | –17.1 | –11.8 |
| q 50 | 3.8 | 1.3 | 0.7 | 1.2 | 0.9 | 0.6 | 0.6 | 0.4 | 0.0 | –0.3 |
| q 84 | 107.2 | 58.4 | 40.3 | 30.6 | 25.4 | 22.8 | 21.7 | 23.9 | 18.2 | 11.5 |
|
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| σ(Δν,νmax) = 1%, 2.5% | ||||||||||
| q 16 | –58.3 | –43.8 | –32.0 | –25.0 | –21.2 | –18.9 | –17.1 | –18.2 | –16.2 | –11.6 |
| q 50 | 3.9 | 0.3 | 0.0 | 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| q 84 | 95.5 | 52.6 | 37.0 | 29.4 | 25.3 | 22.0 | 21.4 | 22.4 | 17.1 | 10.9 |
|
|
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| Weighted | ||||||||||
| q 16 | –61.4 | –48.1 | –34.2 | –25.6 | –21.1 | –18.7 | –20.2 | –25.5 | –26.2 | –18.4 |
| q 50 | 17.4 | 9.4 | 6.6 | 5.6 | 3.6 | 2.2 | –0.7 | –3.5 | –4.0 | –0.3 |
| q 84 | 148.7 | 82.0 | 56.9 | 43.5 | 35.5 | 27.4 | 22.3 | 22.7 | 17.7 | 14.4 |
|
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| ΔY/ΔZ = 1 | ||||||||||
| q 16 | –57.9 | –42.3 | –30.9 | –25.0 | –21.0 | –19.3 | –18.1 | –21.0 | –20.5 | –15.7 |
| q 50 | 27.3 | 12.3 | 6.2 | 3.7 | 2.0 | 0.6 | 0.8 | 0.5 | –0.8 | –1.4 |
| q 84 | 164.6 | 80.2 | 54.3 | 38.5 | 30.8 | 25.5 | 26.2 | 27.4 | 20.4 | 13.0 |
|
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| ΔY/ΔZ = 3 | ||||||||||
| q 16 | –70.7 | –69.1 | –44.0 | –32.1 | –26.0 | –20.4 | –19.4 | –20.6 | –16.6 | –9.9 |
| q 50 | –19.2 | –7.5 | –3.6 | –0.5 | 0.0 | 0.5 | 0.8 | 2.0 | 2.1 | 2.0 |
| q 84 | 85.3 | 49.9 | 35.9 | 31.0 | 26.9 | 23.7 | 24.4 | 29.3 | 22.9 | 14.8 |
|
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| αml = 1.50 | ||||||||||
| q 16 | –17.4 | –13.9 | –9.1 | –7.8 | –7.2 | –6.6 | –6.4 | –8.5 | –8.7 | –9.0 |
| q 50 | 88.1 | 47.8 | 32.3 | 24.2 | 18.1 | 15.5 | 16.1 | 16.1 | 8.8 | 2.0 |
| q 84 | 289.7 | 154.8 | 105.2 | 79.0 | 66.7 | 57.9 | 58.5 | 51.4 | 37.4 | 17.9 |
|
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| αml = 1.98 | ||||||||||
| q 16 | –78.2 | –84.8 | –76.7 | –58.3 | –47.7 | –40.0 | –34.1 | –33.5 | –30.2 | –22.3 |
| q 50 | –54.0 | –40.2 | –26.2 | –18.0 | –14.2 | –12.1 | –11.0 | –10.7 | –6.5 | –4.4 |
| q 84 | 38.6 | 19.0 | 13.6 | 11.7 | 9.9 | 8.9 | 9.2 | 12.6 | 11.3 | 7.3 |
|
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| No diffusion | ||||||||||
| q 16 | –55.9 | –36.4 | –14.1 | –2.2 | 2.5 | 3.4 | 4.2 | 2.1 | –2.2 | –2.2 |
| q 50 | 50.7 | 43.2 | 40.9 | 38.2 | 32.9 | 32.6 | 33.4 | 30.7 | 19.6 | 11.7 |
| q 84 | 243.6 | 150.9 | 116.1 | 96.9 | 83.9 | 77.3 | 74.0 | 65.2 | 49.1 | 31.5 |
|
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| Standard, restricted to M > 1.10 M⊙ | ||||||||||
| q 16 | –60.9 | –44.7 | –30.7 | –22.8 | –19.6 | –16.4 | –14.9 | –21.0 | –18.9 | –11.4 |
| q 50 | 1.5 | 0.0 | 0.9 | 0.9 | –0.8 | –0.3 | 0.1 | 0.4 | 0.0 | –0.1 |
| q 84 | 90.4 | 46.9 | 33.1 | 26.1 | 19.8 | 16.6 | 19.5 | 28.7 | 19.3 | 11.5 |
|
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| Overshooting β = 0.2 | ||||||||||
| q 16 | –60.0 | –43.7 | –32.3 | –24.6 | –22.1 | –21.6 | –20.1 | –16.9 | –1.1 | –21.9 |
| q 50 | –1.4 | –3.5 | –4.5 | –4.2 | –6.4 | –8.5 | –6.2 | 5.7 | 16.5 | –6.0 |
| q 84 | 78.9 | 38.8 | 23.3 | 16.9 | 10.8 | 8.4 | 21.9 | 30.7 | 34.4 | 14.6 |
|
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| Overshooting β = 0.4 | ||||||||||
| q 16 | –62.1 | –44.5 | –34.0 | –28.3 | –26.9 | –27.9 | –25.9 | –15.2 | –16.2 | –41.2 |
| q 50 | –7.5 | –12.2 | –11.8 | –11.2 | –13.9 | –16.1 | –5.3 | –0.4 | –2.8 | –26.1 |
| q 84 | 57.2 | 25.7 | 13.7 | 7.4 | 2.4 | 4.8 | 14.4 | 14.9 | 10.8 | –7.2 |
Notes. Values are expressed as percent. Typical Monte Carlo relative uncertainty on q16 and q84 is about 5%, while the absolute uncertainty on q50 is about 0.5%.
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