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Characterization of planetary atmospheres

Pedro Machado

It will be presented tools for unveiling the dynamics and composition of planetary atmospheres. Taking advantage of high-resolution spectra of back-scattered stellar radiation on planetary atmospheres, one could retrieve wind velocity fields using high-resolution spectroscopy (Doppler velocimetry). I will present research protocols and their related results in the case of long slit spectroscopy (VLT/UVES) and fibre-fed spectroscopy (CFHT/ESPaDOnS). It is also possible to track the temporal evolution of cloud features in order to derive wind velocities. It will be presented results from space-based coordinated observations and ground-based ones using cloud tracking methods. I also intend to show the process used in order to produce synthetic spectra to test the robustness and reliability of the used spectroscopy techniques. Finally, it will be presented a case study of a Solar System planetary transit (Venus) as an effective experiment for atmospheric research studies.

2016 March 17, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
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