"Effects of rotation on the evolution of primordial stars"
Sylvia Ekström, Georges Meynet, Cristina Chiappini, Raphael Hirschi & André Maeder
2008 A&A 489: 685
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 E contain all the data of a given evolutionary model from the arrival on the ZAMS to the pre-SN stage (see the columns description)
the files beginning with a S contain all the data of the final structure of the models (see the column description).
The names of the different files give information on the model considered:
the initial mass is indicated after the E or S
after the letter V stands the initial equatorial velocity in km/s.
Meaning of the columns in the E files
| 1: | model number | ||
| 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  | [Msol / yr] | mass loss |
| 18: | log ρc | [g cm-3] | central density |
| 19: | log Tc | [oK] | central temperature |
| 20: | 1H | [mass fraction] | central abundances |
| 21: | 4He | " | " |
| 22: | 12C | " | " |
| 23: | 13C | " | " |
| 24: | 14N | " | " |
| 25: | 16O | " | " |
| 26: | 17O | " | " |
| 27: | 18O | " | " |
| 28: | 20Ne | " | " |
| 29: | 22Ne | " | " |
| 30: | Ω/Ωcrit | fraction of critical rotation | |
| 31: | Ωsurf | [s-1] | angular velocity at the surface |
| 32: | Ωcentre | [s-1] | angular velocity at the centre |
| 33: | Rpol/Req | oblateness | |
| 34: | veq | [km s-1] | equatorial velocity |
| 35: | FΩ | correction factor to due to rotation |
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Meaning of the columns in the S files
first line:
| col 1: | age | [yr] |
| col 2: | Mtot | [Msol] |
| col 3: | lg L | [Lsol] |
| col 4: | lg Teff | [oK] |
other lines:
| col 1: | shell number (1:surface - m:centre) | ||
| col 2: | Mr/M | mass fraction included in the shell | |
| col 3: | Mr | [Msol] | mass included in the shell |
| col 4: | lg r | [cm] | |
| col 5: | L/Ltot | ||
| col 6: | lg P | [g cm-1 s-2] | |
| col 7: | Pgas/Ptot | ||
| col 8: | lg T | [oK] | |
| col 9: | lg ρ | [g cm-3] | |
| col 10: | α | d ln ρ/d ln P | |
| col 11: | δ | -d ln ρ/d ln T | |
| col 12: | 1H | [mass fraction] | |
| col 13: | 3He | " | |
| col 14: | 4He | " | |
| col 15: | 12C | " | |
| col 16: | 13C | " | |
| col 17: | 14N | " | |
| col 18: | 15N | " | |
| col 19: | 16O | " | |
| col 20: | 17O | " | |
| col 21: | 18O | " | |
| col 22: | 20Ne | " | |
| col 23: | 22Ne | " | |
| col 24: | 24Mg | " | |
| col 25: | 25Mg | " | |
| col 26: | 26Mg | " | |
| col 27: | 28Si | " | |
| col 28: | 32S | " | |
| col 29: | 36Ar | " | |
| col 30: | 40Ca | " | |
| col 31: | 44Ti | " | |
| col 32: | 48Cr | " | |
| col 33: | 52Fe | " | |
| col 34: | 56Ni | " | |
| col 35: | μ | mean molecular weight | |
| col 36: | μe | electrons molecular weight | |
| col 37: | ∇μ | ||
| col 38: | ε(H) | [ergs g-1 s-1] | H-burning energy production rate |
| col 39: | ε(He) | " | |
| col 40: | ε(C) | " | |
| col 41: | ε(3α) | " | |
| col 42: | ε(12C(α,γ)) | " | |
| col 43: | ε(16O(α,γ)) | " | |
| col 44: | εg | " | gravific energy production rate |
| col 45: | εν | " | neutrinos energy production rate |
| col 46: | d ln E/d ln T | E = ε(H,He,C) | |
| col 47: | ∇rad | mean (between j & j+1) | |
| col 48: | ∇ad | mean (between j & j+1) | |
| col 49: | factor for convection (>0:conv - <0:rad) | ||
| col 50: | lg κ | [cm2 g-1] | opacity |
| col 51: | d ln κ/d ln P | ||
| col 52: | d ln κ/d ln T | ||
| col 53: | Ω | [s-1] | angular velocity |
| col 54: | d ln Ω/d ln r | ||
| col 55: | Ω | [s-1] | angular velocity if Ω r2 = cst |
| col 56: | lg rold | [cm] | r of the previous model |
| col 57: | Ωold | [s-1] | Ω of the previous model |
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For further informations or suggestions, please send an email to Sylvia Ekström
