COOLCONSTANTS(1)         TIPSY COMMANDS           COOLCONSTANTS(1)



NAME
     coolconstants - set the values of constants related to cool-
     ing

SYNOPSIS
     coolconstants kpcunit msolunit fhydrogen jnu21 alphaj

ALIASES
     cconst

DESCRIPTION
     coolconstants sets the value of  constants  that  relate  to
     cooling  for  use  in commands such as viewgas. All the con-
     stants are in system units with G  (the  gravitational  con-
     stant) equal to 1 and temperature in degrees Kelvin.

          kpcunit
             is the system length unit in kiloparsecs.

          msolunit
             is the system mass unit in solar masses.

          fhydrogen
             is the fraction of the gas by weight in hydrogen  in
             the system.  the density.

          jnu21
             is the flux of the  background  radiation  field  in
             units of 10-21 ergs-1 cm-2 Hz-1 sr-1.

          alphaj
             is the slope of the  UV  background  spectrum,  j  =
             jnu21*(nu/nu_L)**(-alphaj).


SEE ALSO
      formconstants(1),    gravsoft(1),    gravsoftgas(1),   lumcon-
      stants(1),  redshift(1),  viscconstants(1)

















KQ Release 2.0     Last change: 22 MARCH 1994                   1