Radial velocities of HD45364 (Correia+, 2009)

Details Radial velocities of HD45364 (Correia+, 2009) Radial velocities of HD45364 (Correia+, 2009)

Nov 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ycat..34960521c&link_type=abstract

VizieR On-line Data Catalog: J/A+A/496/521. Originally published in: 2009A&A...496..521C

Computer Science

Planets, Radial Velocities

Scientific paper

Precise radial-velocity measurements with the HARPS spectrograph reveal the presence of two planets orbiting the solar-type star HD 45364. The companion masses are Msini=0.187M{Jup} and 0.658M{Jup}, with semi-major axes of a=0.681AU and 0.897AU, and eccentricities of e=0.168 and 0.097, respectively. A dynamical analysis of the system further shows a 3:2 mean motion resonance between the two planets, which prevents close encounters and ensures the stability of the system over 5Gyr. This is the first time that such a resonant configuration has been observed for extra-solar planets, although there is an analogue in our Solar System formed by Neptune and Pluto. This singular planetary system may provide important constraints on planetary formation and migration scenarios.
(1 data file).

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