Disc-planet, planet-planet, and star-planet interactions during planet formation
In this article we present results from three on-going projects related to the formation of protoplanets in protostellar discs. We
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Dust to Dust: Evidence for Planet Formation?
We discuss the properties of several circumstellar debris disk systems imaged with the Hubble Space Telescope's Near Infrared Camera and
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Dynamical Model of Pulsar-Planet Systems
About two years ago, Wolszczan and Frail announced the detection of a possible planetary system consisting of two Earth-mass planets
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Exo-planet detection with the COROT space mission. I. A multi-transit detection criterion
We present a detection criterion for exo-planets to be used with the space mission COROT. This criterion is based on
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Extrasolar Planet Transit Light Curves and a Method to Select the Best Planet Candidates for Mass Follow-up
A unique analytical solution of planet and star parameters can be derived from an extrasolar planet transit light curve under
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Future Astrometry with ALMA to characterise extra-solar planet orbits
The most complete catalogue of nearby stars (Gliese and Jarheiss, 1991) has been used to search for the stars whose
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General Astrophysics and Comparative Planetology with the Terrestrial Planet Finder Missions
The two Terrestrial Planet Finder (TPF) missions aim to perform spectroscopy on extrasolar Earths; TPF-C will operate in visible light,
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Giant planet formation from disk instability; cooling and heating
We present the results of high resolution SPH simulations of the evolution of gravitationally unstable protoplanetary disks. We report on
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I0-Jupiter system: A unique case of Moon-Planet interaction
Io and Jupiter constitute a moon-planet system that is unique in our solar system. Io is the most volcanically active
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Indicator of Exo-Solar Planet(s) in the Circumstellar Disk Around Beta Pictoris
Our efficient numerical approach has been applied to modeling the asymmetric circumstellar dust disk around Beta Pictoris as observed with
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Long term behavior of a hypothetical planet in a highly eccentric orbit
For a hypothetical planet on a highly eccentric orbit, we have calculated the osculating orbital parameters and its closest approaches
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Observing the planet formation time-scale by ground-based direct imaging of planetary companions to young nearby stars: Gemini/Hokupa'a image of TWA-5
Many extra-solar planets and a few planetary systems have been found indirectly by small periodic radial velocity variations around old
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On the Chaotic Orbits of Disc-Star-Planet Systems
Following Tancredi, Sanchez and Roig (2001)'s criteria of chaos, two ways of setting initial velocities are used in the numerical
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Orbital Motion of Resonant Clumps in Dusty Circumstellar Disks as a Signature of an Embedded Planet
We have applied a powerful numerical approach to compute, with a high resolution, the structure of dusty circumstellar disks with
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Ordinary Chondrite Formation from two Components: Implied Connection to Planet Mercury
Major element fractionation among chondrites has been discussed for decades as ratios relative to Si or Mg. Expressing ratios relative
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Probing Planet Formation Among Nearby Young Stars
The recent identification of several groups of young stars within 100 parsecs of the Sun has generated widespread interest. Given
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Search for Double Transit Extrasolar Planetary Systems: Another Transiting Planet Around OGLE-TR-111 or a False Positive Detection?
The search for double transit planetary systems opens new possibilities for the transit searches and for studies of orbital stability,
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S Ori 70: still a strong cluster planet candidate
In this paper I show that the coolest $σ$Orionis cluster planet S Ori 70 is still a strong candidate member
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Star Formation Processes versus Planet Formation Processes
The processes of star formation are fundamentally different from those of planet formation. Since the mass of a very-low-mass object
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Suppression of giant planet formation in stellar clusters
Photoevaporation driven by the ultraviolet radiation from massive stars severely limits the lifetime of protoplanetary discs around stars formed within
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Terrestrial Planet Finding with a Visible Light Coronagraph
Directly imaging extrasolar planets using a monolithic optical telescope avoids many pitfalls of space interferometry and opens up the prospect
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Testing Bimodal Planet Formation
We suggest that the observed break in giant-planet frequency as a function of host metallicity at Z=0.02 may be a
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The closest extrasolar planet: A giant planet around the M4 dwarf Gl 876
High precision radial velocity observations of the nearby M4 dwarf Gl 876 with the Observatoire de Haute Provence 1.93 m
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The Companion of M4a: A Planet or a Star?
The $\ddot P$ (Backer 1992, Backer et al. 1993, Thorsett et al. 1993) observed for PSR~B1620-26 in the globular cluster
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