This form allows one to create arbitrary mixtures of
single-burst populations. The models are those of Worthey
1994, ApJS, 95, 107. Keep ages between 1 and 18 Gyr, and [Fe/H]
between -2 and +0.5. In addition, the [Fe/H]<-0.225, age<8 corner is
not allowed. The relative (mass) weights you give will be normalized so
that the total initial population mass comes out to a million solar masses.
In the box, enter (Age in Gyr, [Fe/H], relative weight) trios separated by
white space.
E.g., typing 12 0 95 (return)
1 0 5 (return)
will show you what an
old, solar metallicity population looks like when "polluted" by
5% (by mass) of a younger population.
Output options:
Show colors, magnitudes, spectral indices, SBF magnitudes