Objective
One of the most exciting recent developments in astrophysics has been the observation by large international consortia of hundreds of thousands of high-resolution spectra of galaxies in the local and distant Universe. The interpretation of these spectra in terms of stellar ages and metallicities is the key to reconstructing the star formation and chemical enrichment histories of the Universe.
So far, however, such interpretations have been hampered by the fact that current models rely on spectral libraries of observed stars in the Milky Way and Magellanic Clouds, which have solar metal-abundance ratios at high metallicities. In contrast, the spectra of external galaxies appear to often be dominated by stars with non-solar metal abundance ratios (e.g. super solar alpha/Fe for massive galaxies). Until now, therefore, no spectral evolution model could help us fully exploit the wealth of information on chemical enrichment that is encoded in galaxy spectra. Only a few attempts were made to take into account the dependence of some spectral features on metal-abundance ratios.
During my PhD thesis, I computed a comprehensive grid of high-resolution stellar spectra for non-solar mixtures of light elements at different metallicities. In collaboration with stellar evolution experts, we have assembled a grid of stellar evolutionary tracks for the same set of element mixtures. I plan to combine my spectral library with these evolutionary tracks to obtain the first fully consistent population synthesis models allowing the spectral interpretation of star clusters and galaxies in a wide range of chemical compositions.
I will exploit this extremely powerful tool to quantify the effects of changes in abundance ratios on standard diagnostics of age and metallicity in galaxy spectra. By appealing to efficient techniques to interpret the large number of spectra gathered by modern galaxy surveys, I will be able to derive unprecedented constraints on the chemical evolution of galaxies.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology materials engineering colors
- humanities history and archaeology history
- natural sciences physical sciences astronomy astrophysics
- natural sciences physical sciences astronomy stellar astronomy
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
FP6-2005-MOBILITY-7
See other projects for this call
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
IIF - Marie Curie actions-Incoming International Fellowships
Coordinator
PARIS
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.