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Centro de Astrofísica da Universidade do Porto
Asteroseismology of A to F-type Stars Using Satellite Data: δ Scuti Pulsators

Antonio García Hernández

δ Scuti are main-sequence intermediate-mass stars. They form part of the group known as classical pulsators, because they were discovered in the early years of Astronomy. However, due to some characteristics in their pulsating behaviour, they are not well understood yet (above all, compared to the solar type stars). δ Scuti stars are interesting objectives of study. Their range of masses makes them suitable laboratories for understanding several processes of the internal structure during the stellar evolution. On the other hand, the increasing on the discovering of A to F-type stars harbouring planets enhances the interest in obtaining a good characterization of the system.
As I will show you, the asteroseismology study of satellite data could help us to achieve these objectives. However, life is not so easy…

30 May 2012, 13:30

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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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