Surface Brightness Fluctuations: Preliminary approach to unveiling metal-poor components in elliptical galaxies

Rodríguez Beltrán, P.; Vazdekis, A.; Cerviño, M.; Beasley, M.
Referencia bibliográfica

Contributions to the XIV.0 Scientific Meeting (virtual) of the Spanish Astronomical Society

Fecha de publicación:
7
2020
Número de autores
4
Número de autores del IAC
4
Número de citas
0
Número de citas referidas
0
Descripción
Besides the standard analysis based on mean properties, Surface Brightness Fluctuations (SBF) spectra provide an alternative way for studying stellar populations in galaxies. Metal-poor populations are predicted in galaxy formation models, but so far remain undetected beyond the Local Group. The SBF spectra have the potential to unveil these metal-poor components in galaxies dominated by old, metal-rich stars. We have computed SBF magnitudes and we propose fluctuation color diagrams to study composite populations in nearby elliptical galaxies.