RESEARCH
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Angular Differential Imaging (ADI) of Substellar Companions around Sun-like Stars

Janis Hagelberg
Observatoire Astronomique de l'Université de Genève

Abstract
Direct imaging of extrasolar systems is a powerful but challenging technique. It can give access to Jupiter-like planets on wide orbits, and permit atmospheric characterisations. However, detections are challenging due to the high luminosity contrast and the low separation between the companion and the host star.
I will present one of the most efficient direct detection techniques (ADI), and also present our direct imaging program which is using radial velocity data from our two planet-search surveys, CORALIE and HARPS, to select the most promising targets.
Finally our yet most promising direct detection with VLT/NACO will be presented.

2011 May 25, 13:30

IA/U.Porto
Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

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