title H2 populations in solomon dominated limit
c this is a pair with h2_hminus 
c
c commands controlling continuum =========
c this is hot star continuum
black 30000
intensity  -5. range  0.4412 to 1 Ryd
c this will remove all ionizing radiation
extinguish 24 0
c background CR ionization rate should be 2.5e-17 s^-1,
c Tielens & Hollenbach 1985; McKee AstroPH 9901370
cosmic rays, background
c
c commands for density & abundances =========
abundances ism 
hden 5
c
c commands controlling geometry  =========
set dr 0 
stop zone 5 
stop temperature 400 
c
c other commands for details     =========
c default is Takahashi 2001 - test thermal distribution here
set h2 grain formation thermal pump 
atom h2 
iterate
constant temperature 500K
c
c commands controlling output    =========
c don't print so many lines
print line faint 10 
print line column
print line sort wavelength
print column density 
print ages
save performance "h2_solomon.per"
save overview "h2_solomon.ovr" last
save h2 lines "h2_solomon.lin" limit -10 last all electronic all
save h2 rates "h2_solomon.rat" last
save h2 column density "h2_solomon.col" last
save continuum units microns "h2_solomon.con" last
save monitors "h2_solomon.asr" last
save dominant rates "h2_solomon.h2" "H2" last 
save chemistry rates "h2_solomon.h2d" "H2" destruction
c
c commands giving the monitors    =========
// >>chng 05 feb 12, added grains - had not been included
// only H- was creating H2 - everything changed
// >>chng 05 nov 22, from 5.37 to 4.67, NA add freeze out onto grains
// >>chng 05 dec 17, from 4.67 to 5.37, do not stop due to ices
monitor h2 column 5.37 error 0.1
//
// >>chng 05 nov 22, from 1.99 to -1.04, NA add freeze out onto grains
// >>chng 05 nov 22, from -1.04 to -1.74, NA add freeze out onto grains
// >>chng 05 dec 17, from -1.74 to -1.04, do not stop due to ices
// >>chng 05 dec 17, from -1.04 to -0.87, NA increase C chemistry
// >>chng 06 jan 04, from -0.87 to -0.77, NA C chem restore missed block reacts
// >>chng 06 jan 12, from -0.77 to 2.02, add term thermal dest ices
monitor CO column 2.02 error 0.1
//
monitor H2 ortho 3.0
// 
// >>chng 05 nov 22, from 4.27 to 3.58, NA add freeze out onto grains
// >>chng 05 dec 17, from 3.58 to 4.28, do not stop due to ices
monitor H2 column density level v=0 J=0 N=4.28 error 0.1
// 
// >>chng 05 nov 22, from 5.08 to 4.38, NA add freeze out onto grains
// >>chng 05 dec 17, from 4.38 to 5.08, do not stop due to ices
monitor H2 column density level v=0 J=1 N=5.08 error 0.1
// 
// >>chng 05 nov 22, from 4.53 to 3.83, NA add freeze out onto grains
// >>chng 05 dec 17, from 3.83 to 4.53, do not stop due to ices
monitor H2 column density level v=0 J=2 N=4.53 error 0.1
// 
// >>chng 05 nov 22, from 4.71 to 4.02, NA add freeze out onto grains
// >>chng 05 dec 17, from 4.02 to 4.72, do not stop due to ices
monitor H2 column density level v=0 J=3 N=4.72 error 0.1
// 
// >>chng 05 nov 22, from 3.75 to 3.06, NA add freeze out onto grains
// >>chng 05 dec 17, from 3.06 to 3.76, do not stop due to ices
monitor H2 column density level v=0 J=4 N=3.76 error 0.1
// 
// >>chng 05 nov 22, from 3.52 to 2.83, NA add freeze out onto grains
// >>chng 05 dec 17, from 2.83 to 3.53, do not stop due to ices
monitor H2 column density level v=0 J=5 N=3.53 error 0.1
//
// >>chng 05 dec 17, add this assert - this is expected num zones
// was stopping earlier due to ices
monitor nzone 5 error 0.01
//
c h2_solomon.in
c class limit  
c ========================================
c 

This test H2 in case of grain formation and solomon destruction