set output 'sn2011fe_deltam15.ps' set term postscript color enhanced "Helvetica,18" set nogrid set label 1 '15 days after peak' at 818,11.2 tc lt -1 set label 2 '{/Symbol D}_{15}' at 811,10.4 font "Helvetica,24" tc lt -1 set nokey set ylabel 'Johnson B magnitude' set xlabel 'Julian Date - 2,455,000' set title 'The {/Symbol D}_{15} parameter in the B-band light curve' plot [800.0:835.0][12.0:9.5] './sn2011fe_mags.out' index 0 using ($2-2455000):($3+0) with points pt 3 lt 1 ps 1.5 lc 3 lw 3 t 'B-band' , 'delta_m15.dat' index 0 using 1:2 with lines lt 2 lc -1 lw 3 , 'delta_m15.dat' index 1 using 1:2 with lines lt 2 lc -1 lw 3 set output quit