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Spectral Synthesis using the Metropolis-Hastings algorithm

João P. P. Moura

Semi-Empirical Population Synthesis (SEPS) is a technique used in Astrophysics in which the electromagnetic spectrum from an observed galaxy is decomposed in terms of base elements, i.e., individual stars or stellar clusters with known physical properties, such as age and chemical composition, to derive their Star Formation Histories (SFH).
In this Cookie Seminar I will present a possible computational implementation of a simple SEPS model. This was done using the Metropolis-Hastings algorithm with Simulated Annealing to find the best match between the observed and modeled spectrum. I will also talk about my experience working with CAUP researchers through FCUP's Extra-Curricular Traineeship Program.

2012 April 18, 13:30

Centro de Astrofísica da Universidade do Porto (Classroom)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia