Isochrones


Isochrones are interpolated from this discrete grid of theoretical stellar evolutionary tracks.
Useful links: Z calculator and [Fe/H] calculator.
Python routine to read: PGPUCiso.py.

Input Parameters:

Age in Gyr Age : (Gyr, minimum value depends on Z, Y and M/M)
Initial Helium abundance (solar value Y=0.262) Y : (0.23 ≤ Y ≤ 0.37)
Global metallicity (solar value Z=0.0167) Z : (0.00001 ≤ Z ≤ 0.06000)
Solar scaled abundance of alpha elements (solar value [α/Fe]=0.0) [α/Fe] : (0.00 ≤ [α/Fe] ≤ 0.30)
Mass loss rate (Schröder & Cuntz 2005 formula) η : (0.00 ≤ η ≤ 1.00)

Filters :