The HARPS search for southern extra-solar planets - XVII. Super-Earth and Neptune-mass planets in multiple planet systems HD 47 186 and HD 181 433

By F. Bouchy, M. Mayor, C. Lovis, S. Udry, W. Benz, Jean-Loup Bertaux, X. Delfosse, C. Mordasini, F. Pepe, D. Queloz and 1 more. 2008

407 citations recorded by the source corpus.

We report on the detection of two new multiple planet systems orbiting solar-like stars HD 47 186 and HD 181 433. The first system contains a hot Neptune of 22.78 M⊕ with a 4.08-day period and a Saturn of 0.35 MJUP with a 3.7-year period. The second system contains a Super-Earth of 7.5 M⊕ with a 9.4-day period, a 0.64 MJUP with a 2.6-year period, and a third companion of 0.54 MJUP with a period of about 6 years. These detections increase to 20 the number of close-in low-mass exoplanets (below 0.1 MJUP) and strengthen the fact that 80% of these planets are in multiple planetary systems.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/aeac984b5e79ee4444c37a91e76e8223655cc3a4

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

Citations in the corpus

HAT-P-11b: A SUPER-NEPTUNE PLANET TRANSITING A BRIGHT K STAR IN THE KEPLER FIELD (2009, background): “Finally, as was also pointed out by Bouchy et al. (2008), of 7 multiple planet systems containing both a gas-giant planet and a hot Neptune planet, all have super-solar metallicities.”