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Centro de Astrofísica da Universidade do Porto

Hot Jupiters in Young Open Clusters

A. Eggenberger, J. Bouvier, I. Boisse, A.-M. Lagrange, X. Bonfils, E. Moraux, S. Randich, N. Meunier, X. Delfosse

Abstract.
We are carrying out a Doppler search for short-period giant planets around 100 solar-type stars in nearby open clusters aged 30-150 Myr. Finding planets around such young stars will provide unique constraints on the formation and early dynamical evolution of planetary systems. As the properties of our targets are precisely known, we can subtract the large-amplitude radial velocity signal induced by rotating spots to recover the lower-amplitude Doppler signal produced by a close-in giant planet. We present here the results of a pilot study conducted with ESO/HARPS and OHP/SOPHIE. These results illustrate our methodology and demonstrate our ability to detect hot Jupiters around a subsample of representative targets.

Extreme Solar Systems II
Moran, Wyoming, U.S.A.
September 2011

Type: Poster

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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