GENEVA GRIDS OF STELLAR EVOLUTION MODELS

An extensive and homogenous database of stellar evolution models for masses between 0.8 and 120 solar masses and metallicities from Z=0.001 to 0.1 is available. In general the models include evolutionary phases from the main sequence up to either the end of carbon burning for massive stars, the early asymptotic giant branch phase for intermediate-mass stars, or core helium flash for low-mass stars. Pre-main sequence tracks, both canonical (i.e. evolved at constant mass) and accretion scenarios are also provided, as well as horizontal banches for low-mass stars. Predictions regarding the spectral evolution of massive stars can further be obtained from the so-called "combined stellar structure and atmosphere models" (CoStar).

In addition to the evolutionary grids we also provide Fortran codes for the calculation of isochrones and stellar population burst models.

Finally, references are also given to the serie of papers on stellar models with rotation.

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Grids of Geneva's Stellar Evolution Models (Without Rotation)

The available grids of models without rotation are summarized in the table below. The data can be extracted under the column Grid, which points to the CDS data center in Strasbourg. Alternatively you can also get a copy of the models from our anonymous ftp account in Geneva, see instructions (we, however, strongly recommend to access the data through the CDS in Strasbourg as far as it is available there).
The publications related to each grid can be found under the column Paper. They do NOT include the data tables, except for Schaller et al. 1992.

Grid Z X Y Mass loss PaperNotes
PMS 0.001, 0.02 Pre-Main Sequence Bernasconi & Maeder 1996, Bernasconi 1996 Canonical and accretion scenarios available
I 0.001 0.756 0.243 standard Schaller et al. 1992
III 0.004 0.744 0.252 standard Charbonnel et al. 1993
II 0.008 0.728 0.264 standard Schaerer et al. 1993
I 0.020 0.680 0.300 standard Schaller et al. 1992
IV 0.040 0.620 0.340 standard Schaerer et al. 1993
VII 0.100 0.420 0.480 standard Mowlavi et al. 1998
V 0.001->0.04 . . 2 × standard Meynet et al. 1994 M >= 12 Msun
VI 0.001, 0.02 Horizontal Branch Charbonnel et al. 1996 0.8 <= M/Msun <= 1.7
VIII 0.001, 0.02 Low-mass stars Charbonnel et al. 1998 0.4 <= M/Msun <= 1.0
CoStar Combined interior + atmosphere
(massive stars)		 Schaerer et al. 1996a,
Schaerer et al. 1996b,
Schaerer 1996		 spectra predictions


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Isochrones and Population Synthesis

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Models With Rotation

Models with rotation are described in the following new serie of papers:

  Initial chem. compos. Paper Notes
I   Meynet & Maeder 1997 The computational method and the inhibiting effect of the mu-gradient
II   Maeder 1997 A new approach for shear mixing
III   Maeder & Zahn 1998 Meridional circulation with mu -gradients and non-stationarity
IV   Maeder 1999 Von Zeipel's theorem and anisotropic losses of mass and angular momentum
VI solar Maeder & Meynet 2000 The Eddington and Omega -limits, the rotational mass loss for OB and LBV stars
VII Z=0.004 Maeder & Meynet 2001 Analysis of the blue to red supergiant ratio in the SMC
VIII Z=0.00001 Meynet & Maeder 2002 Initial CNO abundances from yields for early galactic evolution
X solar Meynet & Maeder 2003 Wolf-Rayet star populations at solar metallicity

Contact address: Nami.Mowlavi@obs.unige.ch Last modified: 5 September 2004