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Centro de Astrofísica da Universidade do Porto

Kepler Asteroseismology Program:
Introduction and First Results

R. L. Gilliland, T. M. Brown, J. Christensen-Dalsgaard, H. Kjeldsen, C. Aerts, T. Appourchaux, S. Basu, T. R. Bedding, W. J. Chaplin, M. S. Cunha, P. De Cat, J. De Ridder, J. A. Guzik, G. Handler, S. D. Kawaler, L. L. Kiss, K. Kolenberg, D. W. Kurtz, T. S. Metcalfe, M. J. P. F. G. Monteiro, R. Szabó, T. Arentoft, L. Balona, J. Debosscher, Y. Elsworth, P.-O. Quirion, D. Stello, J.-C. Suárez, W. J. Borucki, J. M. Jenkins, D. Koch, Y. Kondo, D. W. Latham, J. F. Rowe, J. H. Steffen

Asteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observations of normal modes of oscillation. The technical requirements for conducting asteroseismology include ultra-high precision measured in photometry in parts per million, as well as nearly continuous time series over weeks to years, and cadences rapid enough to sample oscillations with periods as short as a few minutes. We report on results from the first 43 days of observations in which the unique capabilities of Kepler in providing a revolutionary advance in asteroseismology are already well in evidence. The Kepler asteroseismology program holds intrinsic importance in supporting the core planetary search program through greatly enhanced knowledge of host star properties, and extends well beyond this to rich applications in stellar astrophysics.

Review (regular)

Publications of the Astronomical Society of the Pacific
Volume 122, Page 131
January 2010

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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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