Results 91 to 100 of about 42,848 (232)
Jovian Early Bombardment: planetesimal erosion in the inner asteroid belt
The asteroid belt is an open window on the history of the Solar System, as it preserves records of both its formation process and its secular evolution.
Coradini, Angioletta +2 more
core +1 more source
The origin of short-lived radionuclides and the astrophysical environment of solar system formation
Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y. +15 more
core +1 more source
Abstract The alignment of non‐spherical “flattened” chondrules into a petrofabric is a common feature of hydrated carbonaceous chondrite meteorites. This texture can form as a result of impacts at peak shock pressures exceeding 10 GPa. However, many carbonaceous chondrites with petrofabrics are unshocked.
Laura E. Jenkins +6 more
wiley +1 more source
Abstract Calcium‐aluminum‐rich inclusions (CAIs) are the first objects that formed in the solar accretion disk and therefore provide valuable insights into the evolution of the early solar system. A long‐standing question regarding this earliest formative period relates to the storage of CAIs in the 1–4 Myr time period between their formation and later
P. Ghaznavi +3 more
wiley +1 more source
Was Earth’s Water Acquired Locally during the Earliest Phases of the Solar System Formation?
The origin of the terrestrial water remains debated, as standard solar system formation models suggest that Earth formed from dry grains, inside the snowline of the protosolar nebula (PSN).
Lise Boitard-Crépeau +4 more
doaj +1 more source
Zirconium isotope composition indicates s‐process depletion in samples returned from asteroid Ryugu
Abstract Nucleosynthetic isotope variations are powerful tracers to determine genetic relationships between meteorites and planetary bodies. They can help to link material collected by space missions to known meteorite groups. The Hayabusa 2 mission returned samples from the Cb‐type asteroid (162173) Ryugu.
Maria Schönbächler +89 more
wiley +1 more source
Dust growth in protoplanetary disks - a comprehensive experimental/theoretical approach
More than a decade of dedicated experimental work on the collisional physics of protoplanetary dust has brought us to a point at which the growth of dust aggregates can - for the first time - be self-consistently and reliably modelled.
Dominik +20 more
core +1 more source
Ice Lines, Planetesimal Composition and Solid Surface Density in the Solar Nebula
To date, there is no core accretion simulation that can successfully account for the formation of Uranus or Neptune within the observed 2-3 Myr lifetimes of protoplanetary disks.
A'Hearn +95 more
core +1 more source
Magma Ocean Evolution at Arbitrary Redox State
Abstract Interactions between magma oceans and overlying atmospheres on young rocky planets leads to an evolving feedback of outgassing, greenhouse forcing, and mantle melt fraction. Previous studies have predominantly focused on the solidification of oxidized Earth‐similar planets, but the diversity in mean density and irradiation observed in the low ...
Harrison Nicholls +3 more
wiley +1 more source
The Bombardment History of the Giant Planet Satellites
The origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions.
William F. Bottke +9 more
doaj +1 more source

