Stellar Population Synthesis ·
Reading a Galaxy's Age From Its Light
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.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
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.com · Stellar Population Synthesis