Buscar
Mostrando ítems 31-40 de 114
Nebular gas drag and planetary accretion with eccentric high-mass planets
(2013-04-08)
Aims.We investigate the dynamics of pebbles immersed in a gas disk interacting with a planet on an eccentric orbit. The model has a prescribed gap in the disk around the location of the planetary orbit, as is expected for ...
Formation of planetary systems by pebble accretion and migration: Hot super-Earth systems from breaking compact resonant chains
(2021-06-01)
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 for gas-assisted pebble accretion and disk–planet ...
Dynamical origin of the Dwarf Planet Ceres
(2022-01-01)
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 model the early dynamical evolution of the ...
Deep Exploration of Eridani with Keck Ms-band Vortex Coronagraphy and Radial Velocities: Mass and Orbital Parameters of the Giant Exoplanet
(Institute of Physics Publishing, 2019)
We present the most sensitive direct imaging and radial velocity (RV) exploration of Eridani to date. Eridani is an adolescent planetary system, reminiscent of the early solar system. It is surrounded by a prominent and ...
Substructures in protoplanetary disks imprinted by compact planetary systems
(2022)
The substructures observed in protoplanetary disks may be the signposts of embedded planets carving gaps or creating vortices. The inferred masses of these planets often fall in the Jovian regime despite their low abundance ...
Accretion Kinematics Through The Warped Transition Disk in HD 142527 From Resolved CO(6–5) Observations
(The American Astronomical Society, 2015-10-01)
The finding of residual gas in the large central cavity of the HD 142527 disk motivates questions regarding the
origin of its non-Keplerian kinematics and possible connections with planet formation. We aim to understand ...
Accretion kinematics through the warped transition disk in hd142527 from resolved CO(6-5) observations
(IOP Publishing, 2015)
The finding of residual gas in the large central cavity of the HD 142527 disk motivates questions regarding the origin of its non-Keplerian kinematics and possible connections with planet formation. We aim to understand ...
Detection of sharp symmetric features in the circumbinary disk around Ak Sco
(The American Astronomical Society, 2016)
The Search for Planets Orbiting Two Stars survey aims to study the formation and distribution of planets in binary systems by detecting and characterizing circumbinary planets and their formation environments through direct ...
Perturbers: SPHERE detection limits to planetary-mass companions in protoplanetary disks
(EDP Sciences, 2021)
The detection of a wide range of substructures such as rings, cavities, and spirals has become a common outcome of high spatial resolution imaging of protoplanetary disks, both in the near-infrared scattered light and in ...