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Stellar populations model developments

Published online by Cambridge University Press:  11 August 2026

Alexandre VazdekisOpen the ORCID record for Alexandre Vazdekis[Opens in a new window]
Alexandre Vazdekis*
Affiliation:
Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, SpainDepartamento de Astrofísica, Universidad de La Laguna, E-38205, Tenerife, Spain
*
email: vazdekis@iac.es
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Abstract

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Significant advancements in current stellar populations synthesis models are needed to enhance their ability to perform detailed spectroscopic analyses. Key improvements include incorporating varying abundance ratios through multiple approaches, such as utilizing empirical stellar spectra and applying theoretical differential corrections to account for abundance ratio variations. The development of spectral libraries with controlled abundance variations, offers a more robust framework for modeling non-solar chemical compositions in unresolved stellar populations. Additionally, extending stellar populations models beyond the optical range into the near-infrared is crucial for studying young stellar populations and galaxies at varying redshift. These advancements will provide more precise diagnostic tools for interpreting the wealth of observational data expected from upcoming large-scale spectroscopic surveys, ultimately refining our understanding of galaxy evolution and chemical enrichment processes.

Keywords

galaxies: stellar contentgalaxies: abundancesgalaxies: evolutionstars: abundancesstars: fundamental parameters

Information

Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 20 , Symposium S395: Stellar Populations in the Milky Way and Beyond , January 2024, pp. 399 - 407
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Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of The International Astronomical Union

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