======= Models (exercise #0) ========

The table below organises the data used in each exercise. Data consists in packages compresses with .tar.gz or zip, which can be downloaded by clicking on the provided links.


===== Data ======


^Package ^Date ^Author ^Description   ^Format ^Download |
^wp121130_ex0-smodels|21/01/2019 | A. Serenelli | stellar interior models| gong, amdl | ([[https://drive.google.com/file/d/1wt9k343_fRFg29rr5EGGQ8ieAzxbIpdt/view?usp=sharing| ex0-smodels.tar.gz]]) |
^wp121130_ex0-omodels|21/01/2019 | ALL | oscillations|  - |([[https://drive.google.com/file/d/1J_y6wFwFVbOtDKN33g49Us-BNCEV5yEd/view?usp=sharing | ex0-frequencies.tar.gz]]) |

===== Global properties ======


^Model ^Mass ^[Fe/H] ^alpha  ^ovsh  ^Nshell ^Phase ^Notes|
|0-001 |1.04     | +0.05 | 1.6   | 0.00  |3000    | MS  | Representative of 16Cyg ~7Gyr (Travis et al. 2015)|
|0-002 |1.04     | +0.05 | 1.6   | 0.00  |4000    | SG  | -|
|0-003 |1.50     | +0.00 | 1.6   | 0.00  |3000    | MS  | Small convective core (around 8% of the stellar mass)|
|0-004 |1.50     | +0.00 | 1.6   | 0.00  |4000    | TAMS| -|
|0-005 |1.50     | +0.00 | 1.6   | 0.00  |4000    | SG  | -|


===== Physics ======

^Code | Garstec (A- Wess rev., 2015)|||||
^Convection| MLT, alpha = 1.801|||||
^Overshoot | diffusion equation with exponential decay (Herwig type), including geometric limit applied to small convective cores (H_p towards the center makes overshoot regions too large). Proportion factor f = 0.02 (equivalent to  0.2 - 0.25 Hp in tradicional formulation) |||||
^Extra mixing | Under the convective envelope (Vandenberg et al. 2012) as a function of its mass. Free parameters calibration forced to reproduce the solar Li and chemical abundances observed in globular clusters (e.g. Korn et al. en NGC 6397).||||| 
^gradT | Temperature gradient in overshoot regions is radiative.|||||
^Wind | 1e-13 Msun / yr to avoid depletion of He and metals (included in extra missing calibration) |||||
^Atmosphere | Eddington T-tau |||||
^Nuclear rates | Adelberger et al. 2011, which includes de "low" value of LUNA's N14+p |||||
^Screening | Weak (Salpeter)/intermediate (Graboske et al. 1973, subgiants) |||||
^EOS |FreeEOS de Irwin |||||
^Opacities | OPAL + Ferguson 2005 for low temperatures |||||
^mDiffusion | For all chemical elements |||||
^rLevitation | No |||||
^Relevant constants||||||
^G | 6.67232e-8 (c.g.s.) |||||