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Centro de Astrofísica da Universidade do Porto
VLT mid-infrared observations and active galactic nuclei

Daniel Asmus
European Southern Observatory

In the first part of my talk, I will give an overview of the upgraded VLT mid-infrared instrument, VISIR, which represents currently the only access to these wavelengths in the Southern hemisphere. Furthermore, VISIR has several unique modes like high-resolution spectroscopy and coronagraphy, which will make it very relevant even in the era of JWST. In the second part of my talk, I will demonstrate the important contribution of VISIR to the research on active galactic nuclei (AGN), in particular the study of the dusty obscurer assumed to be present in all AGN. Finally, one important product, the correlation of the mid-infrared to the X-ray properties of AGN, will be highlighted.

9 September 2015, 13:30

Centro de Astrofísica
Rua das Estrelas
4150-762 Porto

Institute of Astrophysics and Space Sciences

Institute of Astrophysics and Space Sciences (IA) is a new but long anticipated research infrastructure with a national dimension. It embodies a bold but feasible vision for the development of Astronomy, Astrophysics and Space Sciences in Portugal, taking full advantage and fully realizing the potential created by the national membership of the European Space Agency (ESA) and the European Southern Observatory (ESO). IA resulted from the merging the two most prominent research units in the field in Portugal: the Centre for Astrophysics of the University of Porto (CAUP) and the Center for Astronomy and Astrophysics of the University of Lisbon (CAAUL). It currently hosts more than two-thirds of all active researchers working in Space Sciences in Portugal, and is responsible for an even greater fraction of the national productivity in international ISI journals in the area of Space Sciences. This is the scientific area with the highest relative impact factor (1.65 times above the international average) and the field with the highest average number of citations per article for Portugal.

Proceed on CAUP's website|Go to IA website