Input Files

The build_poly executable reads parameters from an input file that defines a number of Fortran namelist groups, as described below.

Polytrope Parameters

The &poly namelist group defines polytrope parameters; the input file can contain only one. Allowable parameters are:

n_r (default 1): Number of regions
n_poly (default 0.): Comma-separated list of length n_r, specifying polytropic indices for regions
z_b: Comma-separated list of length n_r-1, specifying radial coordinates of boundaries between regions
Delta_b: Comma-separated list of length n_r-1, specifying logarithmic density jumps at boundaries between regions
Gamma_1 (default 5./3.): First adiabatic exponent
theta_s (default 0): Target surface value of of polytropic dependent variable \(\theta\)

The &num namelist group defines numerical parameters; the input file can contain only one. Allowable parameters are:

dz (default 1E-2): Spacing of grid points in polytropic radial coordinate \(z\)
toler (default 1E-10): Relative and absolute tolerance of Lane-Emden integrations

The &out namelist group defines output parameters; the input file can contain only one. Allowable parameters are: