Abstract:We apply the method of principal component analysis to a sample of simple stellar populations to select some age sensitive spectral indices. Besides the well-known age sensitive index Hβ, we also find...We apply the method of principal component analysis to a sample of simple stellar populations to select some age sensitive spectral indices. Besides the well-known age sensitive index Hβ, we also find some new age sensitive indices, G4300 and Fe4383, C24668, and Mgb. In addition, we find that these spectral indices sensitive to age depend on the metallicity of stellar population, Hβ and G4300 are more suitable to determine the age of low metallicity stellar population, while C24668 and Mgb are more suitable to the high metallicity stellar population.Read More
Publication Year: 2000
Publication Date: 2000-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 2
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