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Centro de Astrofísica da Universidade do Porto
IFU spectroscopy of HII galaxies

Patricio Lagos
CAUP

Abstract
In this talk, I summarize the results of our optical integral field spectroscopic observations in a sample of compact and low luminosity HII galaxies. Observations with GMOS-IFU on GEMINI-South in combination with high spatial resolution near-IR images allowed us to make a detailed picture of the interplay between the ISM and the star formation activity in these galaxies. We created and analyzed maps of spatially distributed emission lines and properties of the ISM (ionization indicators, abundances, extinction, kinematics). I also address the question that not all starbursts require an external trigger such as a galaxy-galaxy encounter, as it seems to be the case for a fraction of low luminosity HII galaxies.

16 May 2012, 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.

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