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xstar Model: Quasar Broad Line Cloud

In this example we model a quasar broad line cloud. In this case we give only the prompted values. This illustrates the use of constant pressure and a power law spectrum, with spectral index input in energy units.

unix > xstar
 xstar version 2.2
covering fraction (0.:1.) [1.] 0.
temperature (/10**4K) (0.:1.e4) [100.] 1.
constant pressure switch (1=yes, 0=no) (0:1) [0] 1
pressure (dyne/cm**2) (0.:1.) [0.03] 
density (cm**-3) (0.:1.e18) [1.E+12] 1.e+10
spectrum type?[pow] pow
radiation temperature or alpha?[-1.] -0.9
luminosity (/10**38 erg/s) (0.:1.e10) [1.] 1.e+8
column density (cm**-2) (0.:1.e25) [1.E23] 
log(ionization parameter) (erg cm/s) (-10.:+10.) [2.] 0.2
hydrogen abundance (0.:100.) [1.] 
helium abundance (0.:100.) [1.] 
carbon abundance (0.:100.) [1.]
nitrogen abundance (0.:100.) [1.] 
oxygen abundance (0.:100.) [1.] 
neon abundance (0.:100.) [1.] 
magnesium abundance (0.:100.) [1.] 
silicon abundance (0.:100.) [1.]
sulfur abundance (0.:100.) [1.] 
argon abundance (0.:100.) [1.] 
calcium abundance (0.:100.) [1.] 
iron abundance (0.:100.) [1.] 
nickel abundance (0.:100.) [1.] 
model name[xstar Default] quasar BLR cloud


Tim Kallman 2014-09-12