Detailed Description

This class constructs an EOS based on a speed of sound of the form

$c_s^2 = a_1 + \frac{a_2 n_B^{a_3}}{1+a_4 n_B^{a_3}}$

where $ n_B $ is the baryon number density .

The EOS requires a hypergeometric function which only converges under specific conditions on the parameters.

Definition at line 50 of file eos_cs2_poly.h.

Public Member Functions
void	fix_params (double nb0, double cs20, double nb1, double cs21, double a3, double a4)
	Fix and based on fitting to the sound speed at two different densities.

void	fix_integ_consts (double nb1, double mu1, double nb2, double ed2)
	Fix the integration constants by specifying the chemical potential at some baryon density and the energy density at another baryon density.

double	cs2_from_nb (double nb)
	Return the squared sound speed given the baryon density in $\mathrm{fm}^{-3}$ .

double	mu_from_nb (double nb)
	Return the chemical potential in $\mathrm{fm}^{-1}$ , including the rest mass, given the baryon density in $\mathrm{fm}^{-3}$ .

double	ed_from_nb (double nb)
	Return the energy density in $\mathrm{fm}^{-4}$ , including the rest mass energy density, given the baryon density in $\mathrm{fm}^{-3}$ .

double	pr_from_nb (double nb)
	Return the pressure in $\mathrm{fm}^{-4}$ given the baryon density in $\mathrm{fm}^{-3}$ .

Protected Attributes
double	a1i
	First speed of sound parameter.

double	a2i
	Second speed of sound parameter.

double	a3i
	Third speed of sound parameter.

double	a4i
	Fourth speed of sound parameter.

double	C1
	Chemical potential integration constant.

double	C2
	Energy density integration constant.

The documentation for this class was generated from the following file:

Public Member Functions