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Centro de Astrofísica da Universidade do Porto

How the exoplanetary research helps to the stellar dynamo understanding

I. Boisse, M. Oshagh, C. Lovis, N. C. Santos, X. Dumusque, X. Bonfils, M. Montalto, G. Boué

Abstract.
The exoplanetary surveys in radial-velocity or in photometry need to have a good knowledge of the magnetic activity. For instance, they have to understand the main shape of stellar activity and spots properties to choose the best targets for the search of low-mass planets in the habitable zone of their stars (Boisse et al. 2011, Dumusque et al. 2011) or to derive the good parameters from the transit observations (Boisse et al. in prep., Oshagh et al. in prep.). With that aim, these studies lead already to give properties on the magnetic activity like on active cycles (Lovis et al. 2011) or on active longitudes (Sanchis-Ojeda et al. 2011), that give important indications to constrain stellar dynamos.

Semaine de l'Astrophysique Française
Nice, France
June 2012

Type: Oral comunication

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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