[FLASH-BUGS] is the proton mass right in flash?

[Tomasz Plewa]

Leonid -

To anwer your first questuion. Your result is the atomic mass unit,
not the proton mass.

According to CODATA86

	amu = 1.66054021e-24,

fairly close to your value. This values is defined in
physical_constants.F90 and available fromt the dBase.

(By the way, at least in two modules FLASH is using slightly different
local value of 1.6605402e-24 - perhaps we should be consistent among
modules.)

Tomek
--
On Tue, Apr 15, 2003 at 12:12:56PM -0500, Leonid Malyshkin wrote:
> 
> Using data for P, rho and T, one finds
> 	m = rho*k_B*T/P = 1.00000*1.38062e-16*7.21630e-12/6.00000e-4
> 	m = 1.66049e-24 gramm
> 
> This is a very very strange result, because 
> 	the proton mass is 1.67261e-24 gramm, it's larger by 1% !!!
> 	the average of proton and electron masses (assuming fully 
>            ionized proton plasma) is 0.5*(m_p+m_e)=0.83676e-24 gramm 
> 
> Does flash have the proton mass and Boltzmann constant right?