[Todos] [Fwd: Recordatorio: IAFE -COLOQUIOS: "Recent results in exoplanetology with the SOPHIE spectr ograph ", Miércoles 28/03 a las 14:00 hs]]

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                   PRÓXIMO COLOQUIO DEL IAFE
                 Instituto de Astronomía y Física del Espacio
                           CONICET-UBA
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   "Recent results in exoplanetology with the SOPHIE spectrograph"

                         Rodrigo Díaz
    Laboratoire d'Astrophysique de Marseille (LAM), Francia

                     Miércoles 28/03 a las 14:00 hs
                      Aula del Edificio IAFE



Abstract: SOPHIE is one of the most precise radial-velocity instruments to
search for and characterize extrasolar planets. It is a high-resolution
spectrograph installed in the 1.93-m telescope at the Observatoire de
Haute-Provence, stabilised in pressure and temperature, which results in a
highly-stable instrument, needed for exoplanet
Besides the varied projects of planet search carried out with this
nstrument, SOPHIE is a key element in the follow-up of planet candidates
provided by different photometric transit surveys, as SuperWASP, CoRoT,
and more recently, Kepler.
Moreover, it is also well-suited to further characterize the detected
planets, by means of the Rossiter-McLaughlin effect, for example.
In the first part of the talk I will discuss some of the most important
results obtained with SOPHIE, and I will then focus on the upgrade
performed on SOPHIE on June 2011, that has increased the instrument's
stability by a factor of 6, and has opened the door to the detection of
Neptune-mass and Super-Earth planets.

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