  We present the detection and characterization of the two new transiting,
close-in, giant extrasolar planets KOI-200b and KOI-889b. They were first
identified by the Kepler team as promising candidates from photometry of the
Kepler satellite, then we established their planetary nature thanks to the
radial velocity follow-up jointly secured with the spectrographs SOPHIE and
HARPS-N. Combined analyses of the whole datasets allow the two planetary
systems to be characterized. The planet KOI-200b has mass and radius of 0.68
+/- 0.09 M_Jup and 1.32 +/- 0.14 R_Jup; it orbits in 7.34 days a F8V host star
with mass and radius of 1.40 (+0.14/-0.11) M_Sun and 1.51 +/- 0.14 R_Sun.
KOI-889b is a massive planet with mass and radius of 9.9 +/- 0.5 M_Jup and 1.03
+/- 0.06 R_Jup; it orbits in 8.88 days an active G8V star with a rotation
period of 19.2 +/- 0.3 days, and mass and radius of 0.88 +/- 0.06 M_Sun and
0.88 +/- 0.04 R_Sun. Both planets lie on eccentric orbits and are located just
at the frontier between regimes where the tides can explain circularization and
where tidal effects are negligible. The two planets are among the first ones
detected and characterized thanks to observations secured with HARPS-N, the new
spectrograph recently mounted at the Telescopio Nazionale Galileo. These
results illustrate the benefits that could be obtained from joint studies using
two spectrographs as SOPHIE and HARPS-N.
