next up previous
Next: Isochrones Up: Database content and access Previous: Database content and access

Stellar tracks

The stellar tracks are grouped in files named according to the following conventions: modIzzz.ext, where I stands for the database ID (col. 2, Table [*]), zzz for the metallicity, and ext for the extension specifying the type of data (see Table [*]). For example modc001.WFPC2 contains the WFPC2 photometric data for all stellar tracks of the model grid # 2.

Grids 1-16 are included integrally in the database. The files with the ID ``c'' or ``e'' contain the 1.25 M_ M$_{\odot}$ track calculated with overshooting. The corresponding no overshoot model is found in the ``o'' files, as indicated in col. 9 of Table [*]. The ``l'' model set, providing the most appropriate low mass star models, consist of the following combination of tracks: 0.4-1 M_ M$_{\odot}$ main sequence tracks from paper VIII (grids 15, 17 respectively), post-He flash models for 0.9 and 1 M_ M$_{\odot}$ from paper VI (with ages properly adjusted to the calculations of paper VIII), 1.25 (no overshoot), 1.5, and 1.7 M_ M$_{\odot}$ tracks from paper VI (grids 13, 14 respectively), and 2 and 2.5 M_ M$_{\odot}$ tracks from paper I (grids 2, 5).

Obviously some of the sets in the database contain redundant data. This is due to the organisation of the sets designed for a simple and covenient use. See Section [*] for some recommendations on how to use the database.

Figure: Synthetic colour-magnitude diagrams in different observationnal planes (upper left: Johnson, upper right: HST-WFPC2, lower left: Geneva, lower right: Washington system) for the Gyr isochrones at different metallicities: from left to right in each panel, 0.0004, 0.001, 0.004, 0.008, 0.02, 0.04, and 0.1 (dashed line).

The content of the various files is as follows:


next up previous
Next: Isochrones Up: Database content and access Previous: Database content and access
Thibault Lejeune
2000-11-23