The HARPS search for southern extra-solar planets . XXII. Multiple planet systems from the HARPS volume limited sample

Details The HARPS search for southern extra-solar planets . XXII. Multiple planet systems from the HARPS volume limited sample The HARPS search for southern extra-solar planets . XXII. Multiple planet systems from the HARPS volume limited sample

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010a%26a...512a..48l&link_type=abstract

Astronomy and Astrophysics, Volume 512, id.A48

Astronomy and Astrophysics

Astrophysics

22

Planets And Satellites: Individual: Hd 125612, Planets And Satellites: Individual: Hd 215497, Planets And Satellites: Individual: Hip 5158, Techniques: Radial Velocities, Techniques: Spectroscopic, Planets And Satellites: General

Scientific paper

We present the detections of three multiple systems within the HARPS volume-limited sample. Among the six planets discussed in this paper, we have identified a "super-Earth" planet with a minimum mass of 6.6 MEarth and a "Neptune" planet with minimum mass of 18 MEarth, both orbiting their parent stars within a distance of 0.05 AU and a period of approximately four days. These detections strengthen the argument that low-mass planets are primarily found in multiple-planetary systems.
Based on observations made with the HARPS instrument on the ESO 3.6 m telescope at La Silla (Chile), under the GTO program ID 072.C-0488.RV tables are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/512/A48

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