38 citations · 166 across the 18 of their papers we have counts for
19 papers
Planet formation on solar system scales
Francesco Zagaria, Andrés F. Izquierdo, Jaehan Bae +32
Giant planets are often regarded as primordial protoplanetary "architects". Their formation and interactions with planetesimals and other planets during and after the protoplanetar…
Magnetically Driven Obliquity in Circumplanetary Disks and Twisted Bipolar-jet Formation
Raúl O. Chametla, Martin E. Pessah, F. Javier Sánchez-Salcedo +4
Circumplanetary disks (CPDs) regulate gas accretion onto forming giant planets and provide the environment in which their satellites may form. We use high-resolution, global three-…
Hourly radio variability of PDS70c from time-differential photometry
Simon Casassus, Miguel Carcamo, Oriana Dominguez-Jamett +5
The radio emission mechanisms from accreting protoplanets, and their variability, link observations and physical properties. We revisit the variability of the ~343GHz (ALMA Band7)…
Resurgence of CO in a warm bubble around accreting protoplanets and its observability
O. Chrenko, S. Casassus, R. O. Chametla
The cold outer regions of protoplanetary disks are expected to contain a midplane-centered layer where gas-phase CO molecules freeze out and their overall abundance is low. The lay…
Multi-frequency observations of PDS 70c: Radio emission mechanisms in the circum-planetary environment
Oriana Domínguez-Jamett, Simon Casassus, Hauyu Baobab Liu +7
PDS 70c is a source of Ha emission and variable sub-mm signal. Understanding its emission mechanisms may enable observations of accretion rates and physical conditions in the circu…
Dust-void evolution driven by turbulent dust flux can induce runaway migration of Earth-mass planets
R. O. Chametla, O. Chrenko, F. S. Masset +2
Torques from asymmetric dust structures (so-called dust-void and filamentary structures) formed around low-mass planets embedded in a non turbulent dust-gas disk can exceed the tor…
Pebble-driven migration of low-mass planets in the 2D regime of pebble accretion
O. Chrenko, R. O. Chametla, F. S. Masset +2
<Context> Pebbles drifting past a disk-embedded low-mass planet develop asymmetries in their distribution and exert a substantial gravitational torque on the planet, thus modifying…
Low-mass planets falling into gaps with cyclonic vortices
Raúl O. Chametla, F. J. Sánchez-Salcedo, Mauricio Reyes-Ruiz +2
We investigate the planetary migration of low-mass planets (, here is the Earth mass) in a gaseous disc containing a previously formed gap. We perf…
The inner disk rim of HD 163296: linking radiative hydrostatic models with infrared interferometry
Ondřej Chrenko, Mario Flock, Takahiro Ueda +3
Previous studies of the protoplanetary disk HD 163296 revealed that the morphology of its sub-au infrared emission encompasses the terminal sublimation front of dust grains, referr…
Turbulent stress within dead zones and magnetic field dragging induced by Rossby vortices
Raúl O. Chametla, Ondrej Chrenko, Mauricio Reyes-Ruiz +1
By means of three dimensional resistive-magnetohydrodynamical models, we study the evolution of the so-called dead zones focused on the magnitude of the Reynolds and Maxwell stress…
Accreting luminous low-mass planets escape from migration traps at pressure bumps
O. Chrenko, R. O. Chametla
We investigate the migration of Mars- to super-Earth-sized planets in the vicinity of a pressure bump in a 3D radiative protoplanetary disc while accounting for the effect of accre…
On wave interference in planet migration: dead zone torques modified by active zone forcing
R. O. Chametla, O. Chrenko, W. Lyra +1
We investigate planetary migration in the dead zone of a protoplanetary disk where there are a set of spiral waves propagating inward due to the turbulence in the active zone and t…
Estimating the depth of gaps opened by planets in eccentric orbit
F. J. Sanchez-Salcedo, R. O. Chametla, O. Chrenko
Planets can carve gaps in the surface density of protoplanetary discs. The formation of these gaps can reduce the corotation torques acting on the planets. In addition, gaps can ha…
Trapping (sub-)Neptunes similar to TOI-216b at the inner disk rim: Implications for the disk viscosity and the Neptunian desert
Ondřej Chrenko, Raúl O. Chametla, David Nesvorný +1
[Abridged] The occurrence rate of observed sub-Neptunes has a break at 0.1 au, which is often attributed to a migration trap at the inner rim of protoplanetary disks where a positi…
Spreading pressure bumps in gas-dust discs can stall planet migration via planet-vortex interactions
R. O. Chametla, O. Chrenko
We investigate the gravitational interaction between low- to intermediate-mass planets () and two previously formed pressure bumps in a gas-dust prot…
TOI-216: Resonant Constraints on Planet Migration
David Nesvorny, Ondrej Chrenko, Mario Flock
TOI-216 is a pair of close-in planets with orbits deep in the 2:1 mean motion resonance. The inner, Neptune-class planet (TOI-216b) is near 0.12 au (orbital period $P_{\rm b} \sime…
Terrestrial planet formation by torque-driven convergent migration of planetary embryos
M. Brož, O. Chrenko, D. Nesvorný +1
Massive cores of the giant planets are thought to have formed in a gas disk by accretion of pebble-size particles whose accretional cross-section is enhanced by aerodynamic gas dra…
Oscillatory migration of accreting protoplanets driven by a 3D distortion of the gas flow
Ondřej Chrenko, Michiel Lambrechts
Context. The dynamics of a low-mass protoplanet accreting solids is influenced by the heating torque, which was found to suppress inward migration in protoplanetary disks with cons…
Binary planet formation by gas-assisted encounters of planetary embryos
Ondřej Chrenko, Miroslav Brož, David Nesvorný
We present radiation hydrodynamic simulations in which binary planets form by close encounters in a system of several super-Earth embryos. The embryos are embedded in a protoplanet…