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Centro de Astrofísica da Universidade do Porto

Continum excess emission in young low mass stars

D. F. M. Folha

The amount of excess emission in the near-infrared spectrum of classical T Tauri stars (CTTS) is higher than predicted by current models. This lack of understanding about the CTTS systems impinges directly on our ability to achieve a deeper knowledge of the final stages of low mass stars formation, of the pre-main sequence history of the Sun and even on the processes that lead to planet formation. Here I present a portion of the Unsolved Universe of the CTTS systems and some Challenges for the Future in this field.

Astrophysics and Space Science
Volume 287, Page 41
October 2003

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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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