set output 'bolo_d.ps' 
set term postscript color enhanced 'Helvetica,18'  
set style line 1 lt rgb 'red' lw 2  
set style line 2 lt rgb 'sea-green' lw 3  
set style line 3 lt rgb 'blue' lw 3  
set style line 4 lt rgb 'cyan' lw 3  
set style line 5 lt rgb 'violet' lw 3  
set style line 6 lt rgb 'black' dt 2 lw 2  
set grid 
set key top right 
set ylabel 'Log(Joules per sq.m. per sec per meter)' 
set xlabel 'Wavelength (nm) ' 
set title 'Planck function for two temperatures '
plot [400:800][0:18] 'bblam_23000.dat' using ($2*1e9):4    with lines ls 1   t 'T=23000 K'  ,              'bblam_5800.dat' using ($2*1e9):4    with lines  ls 3  t 'T=5800 K'  ,              'square_bess.pass' using ($1):($2*19)    with lines  ls 6 t ''  
set output 
quit 
