• Publications
  • Influence
Setting New Standards with HARPS
Catastrophic Disruptions Revisited
Abstract We use a smooth particle hydrodynamics method to simulate colliding rocky and icy bodies from centimeter scale to hundreds of kilometers in diameter in an effort to define self-consistentlyExpand
Structure of Comet Shoemaker-Levy 9 Inferred from the Physics of Tidal Breakup
Abstract Detailed consideration of possible fragmentation mechanisms shows that Comet Shoemaker–Levy 9 (SL9) had negligible effective strength, even in comparison with tide and self-gravity, by theExpand
An Earth-mass planet orbiting α Centauri B
TLDR
The detection of an Earth-mass planet orbiting the authors' neighbour star α Centauri B, a member of the closest stellar system to the Sun, is reported. Expand
The HARPS search for southern extra-solar planets
Context. We present radial-velocity measurements of eight stars observed with the HARPS Echelle spectrograph mounted on the 3.6-m telescope in La Silla (ESO, Chile). Data span more than ten years andExpand
Models of giant planet formation with migration and disc evolution
We present a new model of giant planet formation that extends the core-accretion model of Pollack et al. (1996, Icarus, 124, 62) to include migration, disc evolution and gap formation. We show thatExpand
The HARPS search for Earth-like planets in the habitable zone - I. Very low-mass planets around HD 20794, HD 85512, and HD 192310
Context. In 2009 we started an intense radial-velocity monitoring of a few nearby, slowly-rotating and quiet solar-type stars within the dedicated HARPS-Upgrade GTO program. Aims. The goal of thisExpand
An extrasolar planetary system with three Neptune-mass planets
TLDR
Simulations show that the system of three Neptune-mass planets orbiting the nearby star HD 69830 is in a dynamically stable configuration and theoretical calculations favour a mainly rocky composition for both inner planets, while the outer planet probably has a significant gaseous envelope surrounding its rocky/icy core. Expand
Smooth Particle Hydrodynamics: A Review
A review of the Smooth Particle Hydrodynamics (SPH) method is presented. Emphasis is given to the derivation of the SPH equations from the hydrodynamical conservation equations. This not only showsExpand
The CoRoT-7 planetary system: two orbiting super-Earths
We report on an intensive observational campaign carried out with HARPS at the 3.6 m telescope at La Silla on the star CoRoT-7. Additional simultaneous photometric measurements carried out with theExpand
...
1
2
3
4
5
...