The Rossiter-McLaughlin effect of CoRoT-3b & HD189733b (2009)
Queloz, Didier, Bouchy, Francois, Moutou, Claire, Cameron, Andrew Collier, Claret, Antonio, ...
We present radial-velocity sequences acquired during three transits of the exoplanet HD 189733b and one transit of the CoRoT-3b. We applied a combined Markov-Chain Monte Carlo analysis of...
Mordasini, Christoph, Alibert, Yann, Benz, Willy
With the high number of extrasolar planets discovered by now, it becomes possible to constrain theoretical formation models in a statistical sense. This paper is the first in a series in which we...
Extrasolar planet population synthesis II: Statistical comparison with observation (2009)
Mordasini, Christoph, Alibert, Yann, Benz, Willy, Naef, Dominique
This is the second paper in a series of papers showing the results of extrasolar planet population synthesis calculations. In the companion paper (Paper I), we have presented in detail our methods....
Darwin -— an experimental astronomy mission to search for extrasolar planets (2009)
Cockell, Charles S., Herbst, Tom, Léger, Alain, Absil, O., Beichman, Charles, Benz, Willy, ...
As a response to ESA call for mission concepts for its Cosmic Vision 2015–2025 plan, we propose a mission called Darwin. Its primary goal is the study of terrestrial extrasolar planets and the...
Darwin---an experimental astronomy mission to search for extrasolar planets (2009)
Cockell, Charles S, Herbst, Tom, Léger, Alain, Absil, Olivier, Beichman, Charles, Benz, Willy, ...
As a response to ESA call for mission concepts for its Cosmic Vision 2015--2025 plan, we propose a mission called Darwin. Its primary goal is the study of terrestrial extrasolar planets and the...
HARPS, a new high-resolution spectrograph for the search of extra-solar planets (2007)
Francesco Pepe, Michel Mayor, Bernard Delabre, Dominique Kohler, Daniel Lacroix, Didier Queloz, ...
HARPS (High-Accuracy Radial-velocity Planetary Search) is a high-resolution spectrograph dedicated to the search for extra-solar planets by means of precise radial-velocity (RV) measurements. It will...
Naef, Dominique, Mayor, Michel, Benz, Willy, Bouchy, Francois, Curto, Gaspare Lo, Lovis, Christophe, ...
The HARPS high-resolution high-accuracy spectrograph is offered to the astronomical community since the second half of 2003. Since then, we have been using this instrument for monitoring radial...
Formation and structure of the three Neptune-mass planets system around HD69830 (2007)
Alibert, Yann, Baraffe, Isabelle, Benz, Willy, Chabrier, Gilles, Mordasini, Christophe, Lovis, Christophe, ...
Since the discovery of the first giant planet outside the solar system in 1995 (Mayor & Queloz 1995), more than 180 extrasolar planets have been discovered. With improving detection capabilities, a...
Formation and structure of the three Neptune-mass planets system around HD69830 (2006)
Alibert, Yann, Baraffe, Isabelle, Benz, Willy, Chabrier, Gilles, Mordasini, Christophe, Lovis, Christophe, ...
Since the discovery of the first giant planet outside the solar system in 1995 (Mayor & Queloz 1995), more than 180 extrasolar planets have been discovered. With improving detection capabilities, a...
The Don Quijote Mission: Target Selection and Mitigation-Relevant Science Return (2006)
Harris, Alan, Galvez, Andres, Benz, Willy, Fitzsimmons, Alan, Green, Simon, Michel, Patrick, ...
The Don Quijote concept includes a rendezvous spacecraft and an impactor vehicle. The main aim of the mission is to carry out an experiment to demonstrate the modification of a near-Earth...
Saturn's internal structure and carbon enrichment (2005)
Mousis, Olivier, Alibert, Yann, Benz, Willy
We use the clathrate hydrate trapping theory to calculate the enrichments in O, N, S, Xe, Ar and Kr compared to solar in Saturn's atmosphere. For this, we calibrate our calculations using two...
Don Quijote Mission Study: Target Selection and Possible Science Return (2005)
Harris, Alan, Benz, Willy, Fitzsimmons, Alan, Green, Simon, Michel, Patrick, Valsecchi, Giovanni
Harris, Alan, Benz, Willy, Fitzsimmons, Alan, Galvez, Andres, Green, Simon, Michel, Patrick, ...
In July 2002 the general studies programme of the European Space Agency (ESA) provided funding for preliminary studies of six space missions that could make significant contributions to our knowledge...
Alibert, Yann, Mousis, Olivier, Benz, Willy
We have developed an evolutionary turbulent model of the Jovian subnebula consistent with the extended core accretion formation models of Jupiter described by Alibert et al. (2005b) and derived from...
New Jupiter and Saturn formation models meet observations (2005)
Alibert, Yann, Mousis, Olivier, Mordasini, Christoph, Benz, Willy
The wealth of observational data about Jupiter and Saturn provides strong constraints to guide our understanding of the formation of giant planets. The size of the core and the total amount of heavy...
On the volatile enrichments and composition of Jupiter (2005)
Alibert, Yann, Mousis, Olivier, Benz, Willy
Using the clathrate hydrates trapping theory, we discuss the enrichments in volatiles in the atmosphere of Jupiter measured by the \textit{Galileo} probe in the framework of new extended...
Models of Giant Planet formation with migration and disc evolution (2004)
Alibert, Yann, Mordasini, Christoph, Benz, Willy, Winisdoerffer, Christophe
We present a new model of giant planet formation that extends the core-accretion model of Pollack etal (1996) to include migration, disc evolution and gap formation. We show that taking into account...
A comprehensive set of simulations of high-velocity collisions between main sequence stars (2004)
We report on a very large set of simulations of collisions between two main sequence (MS) stars. These computations were done with the ``Smoothed Particle Hydrodynamics'' method. Realistic stellar...
Nelson, Andrew F., Benz, Willy
(abridged) We analyze the formation and migration of a proto-Jovian companion in a circumstellar disk in 2d, during the period in which the companion makes its transition from `Type I' to `Type II'...
Nelson, Andrew F., Benz, Willy
(abridged) We find that a disk can supply a forming planet with mass at an essentially infinite rate ($\sim1$\mj/25 yr) so that a gap could form very quickly. We show that mass accretion rates faster...
Orbital migration and the frequency of giant planet formation (2002)
Trilling, David E., Lunine, Jonathan I., Benz, Willy
We present a statistical study of the post-formation migration of giant planets in a range of initial disk conditions. For given initial conditions we model the evolution of giant planet orbits under...
We have recently written a new code to simulate the long term evolution of spherical clusters of stars. It is based on the pioneering Monte Carlo scheme proposed by Henon in the 70's. Our code has...
A new Monte Carlo code for star cluster simulations: I. Relaxation (2001)
We have developed a new simulation code aimed at studying the stellar dynamics of a galactic central star cluster surrounding a massive black hole. In order to include all the relevant physical...
Monte Carlo Simulations of Dense Galactic Nuclei (2001)
We have developed a new numerical code to simulate the joint evolution of a massive black hole (MBH) and a surrounding stellar cluster at the center of a galaxy. The physics treated in the...
A Monte Carlo Code to Investigate Stellar Collisions in Dense Galactic Nuclei (2001)
Stellar collisions have long been envisioned to be of great importance in the center of galaxies where densities of 1e6 stars per cubic pc or higher are attained. Not only can they play a unique...
Dynamics of Circumstellar Disks II: Heating and Cooling (1999)
Nelson, Andrew F., Benz, Willy, Ruzmaikina, Tamara
We present a series of 2-d ($r,\phi$) hydrodynamic simulations of marginally self gravitating disks around protostars using an SPH code. We implement simple dynamical heating and we cool each...
Towards Understanding Jovian Planet Migration (1999)
Nelson, Andrew F., Benz, Willy
We present 2D hydrodynamic simulations of circumstellar disks around protostars using a `Piecewise Parabolic Method' (PPM) code. We include a point mass embedded within the disk and follow the...
Dynamics of Circumstellar Disks (1998)
Nelson, Andrew F., Benz, Willy, Adams, Fred C., Arnett, David
We present a series of 2-dimensional hydrodynamic simulations of massive disks around protostars. We simulate the same physical problem using both a `Piecewise Parabolic Method' (PPM) code and a...
Population Synthesis for Neutron Star Systems with Intrinsic Kicks (1997)
Fryer, Chris, Burrows, Adam, Benz, Willy
We use a Monte Carlo binary synthesis code to model the formation and evolution of neutron star systems including high-mass X-ray binaries, low-mass X-ray binaries, double neutron star systems and...
The Dynamics and Outcomes of Rapid Infall onto Neutron Stars (1995)
Fryer, Chris L., Benz, Willy, Herant, Marc
We present an extensive study of accretion onto neutron stars in which the velocity of the neutron star and structure of the surrounding medium is such that the Bondi-Hoyle accretion exceeds .001...
Inside the Supernova: A Powerful Convective Engine (1994)
Herant, Marc, Benz, Willy, Hix, W. Raphael, Fryer, Chris F., Colgate, Stirling
Condensed Abstract: We present an extensive study of the inception of supernova explosions by following the evolution of the cores of two massive stars (15 Msun and 25 Msun) in two dimensions. Our...