The stellar IMF in early-type galaxies from a non-degenerate set of optical line indices
作者： Chiara Spiniello , Scott Trager , Léon V. E. Koopmans , Charlie Conroy
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摘要: We investigate the optical spectral region of spectra 1000 stars searching for IMFsensitive features to constrain low-mass end initial mass function (IMF) slope in elliptical galaxies. The use indicators bluer than NIR (NaI, CaT, Wing-Ford FeH) is crucial if we want compare our observations simple stellar population (SSP) models. MILES library (S anchez-Bl azquez
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