Constants

The &constants namelist group defines various physical constants; the input file should contain exactly one. Allowable parameters are:

G_GRAVITY

Gravitational constant \(G\)

C_LIGHT

Speed of light in vacuo \(c\)

A_RADIATION

Radiation constant \(a\)

M_SUN

Solar mass \(\Msun\)

R_SUN

Solar radius \(\Rsun\)

L_SUN

Solar luminosity \(\Lsun\)

GYRE_DIR

Top-level GYRE directory; overrides the GYRE_DIR environment variable

All of these constants are in cgs units (where applicable), and the default values are defined in $GYRE_DIR/src/common/gyre_constants.fpp.