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A&A 415, 391-402 (2004)
DOI: 10.1051/0004-6361:20034250
The CORALIE survey for southern extra-solar planets
XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE
M. Mayor1, S. Udry1, D. Naef1, F. Pepe1, D. Queloz1, N. C. Santos1, 2 and M. Burnet11 Observatoire de Genève, 51 ch. des Maillettes, 1290 Sauverny, Switzerland
2 Centro de Astronomia e Astrofísica da Universidade de Lisboa, Observatório Astronómico de Lisboa, Tapada da Ajuda, 1349-018 Lisboa, Portugal
(Received 2 September 2003 / Accepted 25 September 2003 )
Abstract
This paper summarizes the information gathered for 16 still
unpublished exoplanet candidates discovered with the CORALIE echelle
spectrograph mounted on the Euler Swiss telescope at La Silla
Observatory. Amongst these new candidates, 10 are typical extrasolar
Jupiter-like planets on intermediate- or long-period
(100
<
P
1350 d) and fairly eccentric
(0.2
e
0.5) orbits (HD 19994, HD 65216,
HD 92788, HD 111232, HD 114386, HD 142415, HD 147513,
HD 196050, HD 216437, HD 216770). Two of these stars are in
binary systems. The next 3 candidates are shorter-period planets
(HD 6434, HD 121504) with lower eccentricities among which we find
a hot Jupiter (HD 83443). More interesting cases are given by the
multiple-planet systems HD 82943 and HD 169830. The former is a
resonant
P2/P1 = 2/1 system in which planet-planet
interactions are influencing the system evolution. The latter is
more hierarchically structured.
Key words: techniques: radial velocities -- techniques: spectroscopic - stars: activity - stars: planetary systems
Offprint request: M. Mayor, michel.mayor@obs.unige.ch
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