Stellar Population Synthesis · Reading a Galaxy's Age From Its Light
unseel.com · SSPs · star-formation history · age-metallicity degeneracy
Composite color g−r —
Stellar M/L — M☉/L☉
Step
Young SSP (0.5 Gyr)
Intermediate SSP (3 Gyr)
Old SSP (11 Gyr)
Composite spectrum / fit
Unseel.com · Stellar Population Synthesis