"Evolution towards the critical limit and the origin of Be stars"
Sylvia Ekström, Georges Meynet, André Maeder & Fabio Barblan
2008 A&A 478: 467
In this directory, you will find the tracks corresponding to the paper mentionned above.
There are two types of files:
the files beginning with a D contain all the data of a given evolutionary model (see the columns description)
the files beginning with a Z contain all the data of ZAMS models at a given mass and metallicity for various rotational rates (see the column description).
The names of the different files give information on the model considered:
the initial mass is indicated after the D or Z
the metallicity is indicated after the small z ("z20" for Z=0.020, "z02" for Z=0.002, "zm5" for Z=10-5 and "z00" for Z=0)
in the D files, after the letter S stands the rotation rate ("S50" being for Ω/Ωcrit=0.50, for instance).
a V before the .dat indicates that the model has been computed with Vink & al. (2000) mass loss prescription.
Meaning of the columns in the D files
| 1: | model no | ||
| 2: | age | [yr] | |
| 3: | M | [Msol] | mass |
| 4: | log L/Lsol | luminosity | |
| 5: | log Teff | [oK] | effective temperature |
| 6: | 1H | [mass fraction] | surface abundances |
| 7: | 4He | " | " |
| 8: | 12C | " | " |
| 9: | 13C | " | " |
| 10: | 14N | " | " |
| 11: | 16O | " | " |
| 12: | 17O | " | " |
| 13: | 18O | " | " |
| 14: | 20Ne | " | " |
| 15: | 22Ne | " | " |
| 16: | Mcc | [M / Mtot] | convective core mass |
| 17: | log Teff | whithout correction for the wind optical depth (WR) | |
| 18: | log  | [Msol / yr] | mass loss |
| 19: | log ρc | [g cm-3] | central density |
| 20: | log Tc | [oK] | central temperature |
| 21: | 1H | [mass fraction] | central abundances |
| 22: | 4He | " | " |
| 23: | 12C | " | " |
| 24: | 13C | " | " |
| 25: | 14N | " | " |
| 26: | 16O | " | " |
| 27: | 17O | " | " |
| 28: | 18O | " | " |
| 29: | 20Ne | " | " |
| 30: | 22Ne | " | " |
| 31: | Rpol/Req | oblateness | |
| 32: | veq | [km s-1] | equatorial velocity |
| 33: | Ω/Ωcrit | fraction of critical rotation | |
| 34: | Ωsurf | [s-1] | angular velocity at the surface |
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Meaning of the columns in the Z files
| 1: | M | [Msol] | mass |
| 2: | log L/Lsol | luminosity | |
| 3: | log Teff | [oK] | effective temperature |
| 4: | R | [Rsol] | radius |
| 5: | Rpol/Req | oblateness | |
| 6: | Ω/Ωcrit | fraction of critical rotation | |
| 7: | Ωsurf | [s-1] | angular velocity at the surface |
| 8: | veq | [km s-1] | equatorial velocity |
| 9: | Mcc | [M / Mtot] | convective core mass |
| 10: | log ρc | [g cm-3] | central density |
| 11: | log Tc | [oK] | central temperature |
| 12: | I | [g cm2] | moment of inertia |
| 13: | J | [g cm2 s-1] | total angular momentum |
| 14: | Erot | [ergs] | total rotational energy |
| 15: | Epot | [ergs] | total potential energy |
| 16: | Egas | [ergs] | total energy of the gas |
| 17: | Erad | [ergs] | total energy of the radiation |
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For further informations or suggestions, please send an email to Sylvia Ekström
