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Spectroscopic ages and metallicities of galaxies | | M. Koleva
; A. Bedregal
; Ph. Prugniel
; S. De Rijcke
; W. W. Zeilinger
; | | Date: |
5 May 2011 | | Abstract: | Dwarf galaxies are generally faint. To derive their age and metallicity
distributions, it is critical to optimize the use of any collected photon.
Koleva et al., using full spectrum fitting, have found strong population
gradients in some dwarf elliptical galaxies. Here, we show that the population
profiles derived with this method are consistent and more precise than those
obtained with spectrophotometric indices. This allows studying fainter objects
in less telescope time. | | Source: | arXiv, 1105.1050 | | Services: | Forum | Review | PDF | Favorites | |
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