MIUSCAT: extended MILES spectral coverage - II. Constraints from optical photometry

Bibcode
2012MNRAS.424..172R
DOI
10.1111/j.1365-2966.2012.21178.x
Ricciardelli, E.; Vazdekis, A.; Cenarro, A. J.; Falcón-Barroso, J.
Bibliographical reference

Monthly Notices of the Royal Astronomical Society, Volume 424, Issue 1, pp. 172-189.

Advertised on:
7
2012
Journal
Monthly Notices of the Royal Astronomical Society
Number of authors
4
IAC number of authors
2
Citations
62
Refereed citations
57
Description
In this work, we show a comprehensive comparison of our new stellar population synthesis (SPS) MIUSCAT models with photometric data of globular clusters (GCs) and early-type galaxies.The models compare remarkably well with the colours of Milky Way GCs in the optical range. Likewise, the colours of M31 GCs can also be explained by the models by assuming younger ages than their Galactic counterparts. When compared with quiescent galaxies, we reproduce the colour evolution at intermediate redshift. On the other hand, we find that the colour relations of nearby early-type galaxies are still a challenge for present-day SPS models. We investigate a number of possible explanations and establish the importance of α-enhanced models to bring down the discrepancy with observations.
Related projects
Group members
Traces of Galaxy Formation: Stellar populations, Dynamics and Morphology
We are a large, diverse, and very active research group aiming to provide a comprehensive picture for the formation of galaxies in the Universe. Rooted in detailed stellar population analysis, we are constantly exploring and developing new tools and ideas to understand how galaxies came to be what we now observe.
Anna
Ferré Mateu
In progress
Type
Refereed
Galaxies
Star clusters

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