Results 1 to 10 of about 227,798 (298)
Theoretical models of planetary system formation. II. Post-formation evolution [PDF]
Astronomy & Astrophysics, 2015 We extend the results of planetary formation synthesis by computing the long-term evolution of synthetic systems from the clearing of the gas disk into the dynamical evolution phase.
Alibert, Y. +3 more
core +6 more sources
Bifurcation of planetary building blocks during Solar System formation [PDF]
Science, 2021 Seminar Talk on Lichtenberg et al., Science (2021)
Lichtenberg, Tim +4 more
exaly +7 more sources
Habitable Planet Formation in Binary-Planetary Systems [PDF]
The Astrophysical Journal, 2007 Recent radial velocity observations have indicated that Jovian-type planets can exist in moderately close binary star systems. Numerical simulations of the dynamical stability of terrestrial-class planets in such environments have shown that, in addition
Canup R. M. +10 more
core +5 more sources
Searching For the t=0 of Planetary System Formation [PDF]
EPJ Web of Conferences, 2022 The composition of bodies in the solar system points to strong gradients in the volatile content within solid bodies hinting at the presence of gas-ice transitions across sublimation fronts in the young formative stages when the gas-rich disk was present.
Bergin Edwin +2 more
doaj +1 more source
An Analytical Theory for the Growth from Planetesimals to Planets by Polydisperse Pebble Accretion
The Astrophysical Journal, 2023 Pebble accretion is recognized as a significant accelerator of planet formation. Yet only formulae for single-sized (monodisperse) distribution have been derived in the literature.
Wladimir Lyra +3 more
doaj +1 more source
Origin and Formation of Planetary Systems [PDF]
Astrobiology, 2010 To estimate the occurrence of terrestrial exoplanets and maximize the chance of finding them, it is crucial to understand the formation of planetary systems in general and that of terrestrial planets in particular. We show that a reliable formation theory should not only explain the formation of the Solar System, with small terrestrial planets within a
Alibert, Y. +25 more
openaire +4 more sources
Planetary formation in the Gamma-Cephei system [PDF]
Astronomy & Astrophysics, 2004 We numerically investigate under which conditions the planet detected at 2.1 AU of Gamma-Cephei could form through the core-accretion scenario despite the perturbing presence of the highly eccentric companion star. We first show that the initial stage of runaway accretion of kilometer-sized planetesimals is possible within 2.5 AU from the central star ...
Thébault, Philippe +4 more
openaire +4 more sources
The formation of planetary systems [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 In an embedded cluster, with high stellar densities, interactions can occur between stars and either newly formed diffuse protostars or high-density regions produced by the collision of turbulent elements. It is shown by smoothed particle hydrodynamics (SPH) modelling that interactions can occur in which the complete protostar, or high-density region ...
S. Oxley, M. M. Woolfson
openaire +1 more source
The formation of planetary systems with SPICA [PDF]
Publications of the Astronomical Society of Australia, 2021 Abstract In this era of spatially resolved observations of planet-forming disks with Atacama Large Millimeter Array (ALMA) and large ground-based telescopes such as the Very Large Telescope (VLT), Keck, and Subaru, we still lack statistically relevant information on the quantity and composition of the material that is building the planets, such as ...
Kamp, I. +40 more
openaire +7 more sources
The Astronomical Journal, 2023 We present the latest and most precise characterization of the architecture for the ancient (≈11 Gyr) Kepler-444 system, which is composed of a K0 primary star (Kepler-444 A) hosting five transiting planets and a tight M-type spectroscopic binary (Kepler-
Zhoujian Zhang +13 more
doaj +1 more source