Navegação Ciências Exatas e da Terra por Assunto "Abundances - lines"
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The stellar-free emission component in galactic nuclei : at low-levels, evidence for shock ionization
(1989) [Artigo de periódico]We have isolated the emission-line component in a sample of 92 galaxies using stellar absorption templates built from emission-free star cluster spectra. Ali sources of reddening extrinsic to the line emitting regions have ...