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Table 3.

Age range where the model fits the observed surface velocity, the observed radius, and the observed braking timescale, for each stellar model characterized by an initial mass, metallicity, rotation, and surface magnetic field.

Mini υini Beq.,ini Age ranges in Myr deduced from
Age ranges in Myr deduced from
M kG υeq R HRD υeq R HRD


Z = 0.014 Z = 0.020
8.0 250 3 0.81–1.02 > 8.20 No Sol. Y 0.74–0.95 > 3.0 No Sol. Y
8.4 250 3 0.72–0.96 > 4.25 No Sol. N 0.73–0.94 > 0.0 No Sol. Y
8.7 250 3 0.72–0.94 > 1.70 No Sol. N 0.67–0.87 > 0.0 No Sol. Y
9.1 250 3 0.71–0.94 > 0.0 No Sol. N 0.67–0.88 0.00–8.7 No Sol. N
8.0 250 5 0.56–0.70 > 7.8 No Sol. Y 0.55–0.67 > 3.3 No Sol. Y
8.4 250 5 0.53–0.67 > 4.5 No Sol. N 0.54–0.66 > 0.0 No Sol. Y
8.7 250 5 0.52–0.65 > 2.0 No Sol. N 0.48–0.60 > 0.0 No Sol. Y
9.1 250 5 0.52–0.65 > 0.0 No Sol. N 0.50–0.61 0.00–8.80 No Sol. N
8.0 250 7 0.49–0.57 > 8.4 > 5.2 Y 0.47–0.55 > 3.5 < 0.5 or 2.6–7.3 Y
8.4 250 7 0.45–0.54 > 4.5 < 0.3 or > 3.9 N 0.47–0.55 > 0.0 < 0.7 or 1.4–5.3 Y
8.7 250 7 0.43–0.53 > 2.3 < 0.4 or > 3. N 0.42–0.49 > 0.0 < 4.5 Y
9.1 250 7 0.44–0.53 > 0.0 < 0.4 or > 2.1 N 0.43–0.51 < 8.40 < 3.4 N
8.0 350 3 1.48–1.92 > 9.3 No Sol. Y 1.25–1.65 < 0.7or > 2.8 No Sol. Y
8.4 350 3 1.38–1.81 > 4.6 No Sol. Y 1.25–1.63 > 0.0 No Sol. Y
8.7 350 3 1.44–1.86 > 0.0 No Sol. Y 1.20–1.60 > 0.0 No Sol. Y
9.1 350 3 1.38–1.81 > 0.0 No Sol. N 1.23–1.63 < 9.5 No Sol. Y
8.0 350 5 0.90–1.06 > 8.7 No Sol. Y 0.83–1.02 > 4.7 < 0.3 or > 7.5 Y
8.4 350 5 0.85–1.06 > 4.8 No Sol. Y 0.79–0.98 > 0.0 < 0.3 or > 7.5 Y
8.7 350 5 0.84–1.04 > 2.5 No Sol. N 0.75–0.91 > 0.0 < 0.3 or > 7.5 Y
9.1 350 5 0.89–1.04 > 0.0 No Sol. N 0.77–0.96 < 9.5 No Sol. Y
8.0 350 7 0.72–0.83 > 9.1 < 0.5 or > 5.9 Y 0.67–0.77 < 0.5 or > 3.9 0.3–0.7 or > 2.8 Y
8.4 350 7 0.67–0.80 > 4.9 0.3–0.5 or > 4.3 Y 0.62–0.73 > 0.0 0.3–5.7 Y
8.7 350 7 0.65–0.77 > 2.5 0.3–0.5 or > 3.3 N 0.62–0.73 > 0.0 0.4–4.7 Y
9.1 350 7 0.67–0.78 > 0.0 0.3–0.6 or > 2.3 N 0.61–0.73 0.0–9.0 0.5–3.7 Y
8.0 450 3 2.00–2.50 0.00–0.50 or > 9.5 No Sol. Y 1.76–2.17 > 0.0 No Sol. Y
8.4 450 3 2.00–2.50 0.00–0.60 or > 4.8 No Sol. Y 1.76–2.15 > 0.0 No Sol. Y
8.7 450 3 1.98–2.40 > 0.0 No Sol. Y 1.81–2.13 > 0.25 No Sol. Y
9.1 450 3 1.99–2.45 > 0.0 No Sol. N 1.76–2.23 0.35–9.6 No Sol. Y
8.0 450 5 1.19–1.49 0.00–0.40 or > 9.2 0.3–0.4 Y 1.06–1.36 < 0.7 or > 3.9 0.35–0.50 Y
8.4 450 5 1.17–1.47 0.00–0.50 or > 5.2 0.3–0.4 Y 1.06–1.37 > 0.0 0.35–0.50 Y
8.7 450 5 1.19–1.49 0.00–0.70 or > 2.3 0.3–0.4 Y 1.03–1.32 > 0.2 0.35–0.50 Y
9.1 450 5 1.18–1.47 > 0.0 0.0–0.4 N 1.04–1.31 > 0.3 0.30–0.40 Y
8.0 450 7 0.88–1.07 0.00–0.40 or > 9.3 0.4–0.6 or > 6.0 Y 0.80–0.91 < 0.5 or > 4.1 0.4–0.8 or 2.8–7.2 Y
8.4 450 7 0.86–1.00 0.00–0.40 or > 5.2 0.4–0.6 or > 4.6 Y 0.76–0.91 > 0.0 0.4–6.0 Y
8.7 450 7 0.87–1.07 0.00–0.50 or > 2.7 0.4–0.6 or > 3.4 N 0.75–0.91 > 0.2 0.5–5.0 Y
9.1 450 7 0.87–1.03 > 0.0 0.4–0.8 or > 2.4 N 0.77–0.92 0.3–9.5 0.5–3.8 Y

Notes. The column labeled “HRD” indicates whether the model fits (Y) or not (N) the observed position in the HR diagram. Red is used to indicate age ranges and HRD positions that are not compatible with the age range given by the surface velocity constraint. Only seven models highlighted with bold face satisfy all the constraints considered in this table.

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