2016 YaPSI Grid

Paper: F. Spada, P. Demarque, Y.-C. Kim, T.S. Boyajian & J.M. Brewer, 2017, ApJ, 838, 161

Description
Input Parameters and output format

Federico Spada Pierre Demarque

NEW! Interpolation Tools

Isochrones

In addition to the tracks (below) we have generated isochrones using the colors of Worthy & Lee (2011) (WL11) and Lejeune, Cuisinier & Buser (1998) (LCB98). Each set of isochrones are from 1 Myr to 20 Gyr for 25 compositions.

Tracks: Entire Set, or Sub-Grids

You can download the entire set of tracks, or choose the desired subgrid from the table below (solar calibration is highlighted in yellow).

Y = 0.25 Y = 0.28 Y = 0.31 Y = 0.34 Y = 0.37
[Fe/H]=+0.3 (X = 0.717092, Z = 0.032908) (X = 0.688408, Z = 0.031592) (X = 0.659725, Z = 0.030275) (X = 0.631041, Z = 0.028959) (X = 0.602357, Z = 0.027643)
[Fe/H]= 0.0 (X = 0.733138, Z = 0.016862) (X = 0.703812, Z = 0.016188) (X = 0.674487, Z = 0.015513) (X = 0.645161, Z = 0.014839) (X = 0.615836, Z = 0.014164)
[Fe/H]=-0.5 (X = 0.744584, Z = 0.005416) (X = 0.714801, Z = 0.005199) (X = 0.685018, Z = 0.004982) (X = 0.655234, Z = 0.004766) (X = 0.625451, Z = 0.004549)
[Fe/H]=-1.0 (X = 0.748279, Z = 0.001721) (X = 0.718348, Z = 0.001652) (X = 0.688417, Z = 0.001583) (X = 0.658485, Z = 0.001515) (X = 0.628554, Z = 0.001446)
[Fe/H]=-1.5 (X = 0.749455, Z = 0.000545) (X = 0.719477, Z = 0.000523) (X = 0.689499, Z = 0.000501) (X = 0.659520, Z = 0.000480) (X = 0.629542, Z = 0.000458)

Initial grid (2013)

F. Spada, P. Demarque, Y.-C. Kim & A. Sills 2013, ApJ, 776, 87

A set of stellar tracks and isochrones, focussed on low mass stars.

Brief Description
Readme

Federico Spada Pierre Demarque

Entire Set, or Sub-Grids

You can download the entire set of tracks and isochrones, or choose the desired subgrid from the table below (solar calibration is highlighted in yellow).

αMLT = 3.0 αMLT = 1.875 αMLT = 1.0 αMLT = 0.5
[Fe/H] = +0.3 (X = 0.67336, Z = 0.03090, α=3.000) (X = 0.67336, Z = 0.03090, α=1.875) (X = 0.67336, Z = 0.03090, α=1.000) (X = 0.67336, Z = 0.03090, α=0.500)
[Fe/H] = 0.0 (X = 0.70952, Z = 0.01631, α=3.000) (X = 0.70952, Z = 0.01631, α=1.875) (X = 0.70952, Z = 0.01631, α=1.000) (X = 0.70952, Z = 0.01631, α=0.500)
[Fe/H] = -0.5 (X = 0.73671, Z = 0.00535, α=3.000) (X = 0.73671, Z = 0.00535, α=1.875) (X = 0.73671, Z = 0.00535, α=1.000) (X = 0.73671, Z = 0.00535, α=0.500)
[Fe/H] = -1.0 (X = 0.74574, Z = 0.00171, α=3.000) (X = 0.74574, Z = 0.00171, α=1.875) (X = 0.74574, Z = 0.00171, α=1.000) (X = 0.74574, Z = 0.00171, α=0.500)
[Fe/H] = -1.5 (X = 0.74865, Z = 0.00054, α=3.000) (X = 0.74865, Z = 0.00054, α=1.875) (X = 0.74865, Z = 0.00054, α=1.000) (X = 0.74865, Z = 0.00054, α=0.500)