387 citations · 2.2k across the 39 of their papers we have counts for
37 papers · 1 filter
Carbon from Interstellar Clouds to Habitable Worlds
Edwin A. Bergin, Marc M. Hirschmann, Andre Izidoro
Carbon is an essential element for a habitable world. Inner (r < 3 au) disk planetary carbon compositions are strongly influenced by supply and survival of carbonaceous solids. Her…
The late formation of chondrites as a consequence of Jupiter-induced gaps and rings
Baibhav Srivastava, André Izidoro
The accretion ages of the first planetesimals-the parent bodies of magmatic iron meteorites-suggest they formed within the first 0.5-1 Myr of Solar System history. Yet, planetesima…
Reassessing the origin and evolution of Ecliptic Comets in the Planet-9 Scenario
Rafael Ribeiro, Andre Izidoro, Alessandro Morbidelli +2
A group of newly observed extreme trans-Neptunian objects exhibit unexpected orbital confinement, characterized by the alignment of orbital angular momentum vectors and apsidal lin…
Accretion of Uranus and Neptune: confronting different giant impact scenarios
Leandro Esteves, André Izidoro, Othon C. Winter
The origins of Uranus and Neptune are not fully understood. Their inclined rotation axes -- obliquities -- suggest that they experienced giant impacts during their formation histor…
Diversity of disc viscosities can explain the period ratios of resonant and non-resonant systems of hot super-Earths and mini-Neptunes
Bertram Bitsch, Andre Izidoro
Migration is a key ingredient for the formation of close-in super-Earth and mini-Neptune systems, as it sets in which resonances planets can be trapped. Slower migration rates resu…
Formation of Terrestrial Planets
Matthew S. Clement, Andre Izidoro, Sean N. Raymond +1
Our understanding of the process of terrestrial planet formation has grown markedly over the past 20 years, yet key questions remain. This review begins by first addressing the cri…
Resonant sub-Neptunes are puffier
Adrien Leleu, Jean-Baptiste Delisle, Remo Burn +12
A systematic, population-level discrepancy exists between the densities of exoplanets whose masses have been measured with transit timing variations (TTVs) versus those measured wi…
Implantation of asteroids from the terrestrial planet region: The effect of the timing of the giant planet instability
Andre Izidoro, Rogerio Deienno, Sean N. Raymond +1
The dynamical architecture and compositional diversity of the asteroid belt strongly constrain planet formation models. Recent Solar System formation models have shown that the ast…
Asteroids were born bigger: An implication of surface mass ablation during gas-assisted implantation into the asteroid belt
Rafael Ribeiro de Sousa, Andre Izidoro, Rogerio Deienno +1
The origins of carbonaceous asteroids in the asteroid belt is not fully understood. The leading hypothesis is that they were not born at their current location but instead implante…
Giants are bullies: how their growth influences systems of inner sub-Neptunes and super-Earths
Bertram Bitsch, Andre Izidoro
Observations point to a correlation between outer giants and inner sub-Neptunes, unexplained by simulations so far. We utilize N-body simulations including pebble and gas accretion…
Origin of Water in the Terrestrial Planets: Insights from Meteorite Data and Planet Formation Models
Andre Izidoro, Laurette Piani
Water condensed as ice beyond the water snowline, the location in the Sun's natal gaseous disk where temperatures were below 170 K. As the disk evolved and cooled, the snowline mov…
Rethinking the role of the giant planet instability in terrestrial planet formation models
Matthew S. Clement, Rogerio Deienno, Andre Izidoro
Advances in computing power and numerical methodologies over the past several decades sparked a prolific output of dynamical investigations of the late stages of terrestrial planet…
Dynamical origin of the Dwarf Planet Ceres
Rafael Ribeiro de Sousa, Alessandro Morbidelli, Rodney Gomes +3
The Dwarf Planet Ceres revealed the presence of ammonia and other unique properties compared to other asteroids in the main belt which suggests that it was not formed in situ. We m…
An upper limit on late accretion and water delivery in the Trappist-1 exoplanet system
Sean N. Raymond, Andre Izidoro, Emeline Bolmont +9
The Trappist-1 system contains seven roughly Earth-sized planets locked in a multi-resonant orbital configuration, which has enabled precise measurements of the planets' masses and…
The "Breaking The Chains" migration model for super-Earths formation: the effect of collisional fragmentation
Leandro Esteves, André Izidoro, Bertram Bitsch +4
Planets between 1-4 Earth radii with orbital periods <100 days are strikingly common. The migration model proposes that super-Earths migrate inwards and pile up at the disk inner e…
Born extra-eccentric: A broad spectrum of primordial configurations of the gas giants that match their present-day orbits
Matthew S. Clement, Rogerio Deienno, Nathan A. Kaib +3
In a recent paper we proposed that the giant planets' primordial orbits may have been eccentric (~0.05), and used a suite of dynamical simulations to show outcomes of the giant pla…
Born eccentric: constraints on Jupiter and Saturn's pre-instability orbits
Mattthew S. Clement, Sean N. Raymond, Nathan A. Kaib +3
An episode of dynamical instability is thought to have sculpted the orbital structure of the outer solar system. When modeling this instability, a key constraint comes from Jupiter…
Earth-size planet formation in the habitable zone of circumbinary stars
G. O. Barbosa, O. C. Winter, A. Amarante +3
In this work is investigated the possibility of close-binary star systems having Earth-size planets within their habitable zones. First, we selected all known close-binary systems…
Planet formation: The case for large efforts on the computational side
Wladimir Lyra, Thomas Haworth, Bertram Bitsch +54
Modern astronomy has finally been able to observe protoplanetary disks in reasonable resolution and detail, unveiling the processes happening during planet formation. These observe…
Rocky super-Earths or waterworlds: the interplay of planet migration, pebble accretion and disc evolution
Bertram Bitsch, Sean N. Raymond, Andre Izidoro
Recent observations have found a valley in the size distribution of close-in super-Earths that is interpreted as a signpost that close-in super-Earths are mostly rocky in compositi…
Formation of short-period planets by disk migration
Daniel Carrera, Eric B. Ford, Andre Izidoro
Protoplanetary disks are thought to be truncated at orbital periods of around 10 days. Therefore, origin of rocky short period planets with days is a puzzle. We propose th…
Formation of planetary systems by pebble accretion and migration: Growth of gas giants
Bertram Bitsch, André Izidoro, Anders Johansen +4
Giant planets migrate though the protoplanetary disc as they grow. We investigate how the formation of planetary systems depends on the radial flux of pebbles through the protoplan…
Formation of planetary systems by pebble accretion and migration: How the radial pebble flux determines a terrestrial-planet or super-Earth growth mode
Michiel Lambrechts, Alessandro Morbidelli, Seth A. Jacobson +4
Super-Earths are found in tighter orbits than the Earth's around more than one third of main sequence stars. It has been proposed that super-Earths are scaled-up terrestrial planet…
Formation of planetary systems by pebble accretion and migration: Hot super-Earth systems from breaking compact resonant chains
André Izidoro, Bertram Bitsch, Sean N. Raymond +4
At least 30\% of main sequence stars host planets with sizes of between 1 and 4 Earth radii and orbital periods of less than 100 days. We use N-body simulations including a model f…