Results 41 to 50 of about 768 (162)
The Astrophysical JournalContinuing our initiative on advancing the calculations of planetesimal accretion in the core-accretion model, we present here the results of our recent study of the contributions of planetesimals around and beyond the orbit of Saturn.
Nader Haghighipour +2 more
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The Influence of Cold Jupiters in the Formation of Close-in Planets. I. Planetesimal Transport
The Astrophysical Journal, 2023 The formation of a cold Jupiter (CJ) is expected to quench the influx of pebbles and the migration of cores interior to its orbit, thus limiting the efficiency of rocky planet formation either by pebble accretion and/or orbital migration.
Marcy Best +2 more
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APPLICATION OF GAS DYNAMICAL FRICTION FOR PLANETESIMALS. I. EVOLUTION OF SINGLE PLANETESIMALS [PDF]
The Astrophysical Journal, 2015 Accepted to ...
Evgeni Grishin, Hagai B. Perets
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Impact‐Generated Mixing, Melting and Vaporization of the Early Earth's Crust
Earth and Space Science, Volume 13, Issue 2, February 2026.Abstract Earth's primary accretion was followed by a protracted flux of interplanetary collisions by leftover planetesimals. The effects of the largest collisions—with bodies possibly exceeding 1,000 km diameter—would have been devastating for terrestrial near‐surface environments.
S. Marchi +3 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract The study of silicate glasses is important to understand the physical and chemical properties of silicate melts under high‐pressure conditions relevant to planetary interiors. We conducted in situ Brillouin spectroscopy measurements on two endmember, low‐impurity CaSiO3 glasses and one Fe, Al, Mg, Ti‐bearing CaSiO3 glass up to 23 GPa.
Wenhao Su +5 more
wiley +1 more source
Planetesimal Drift in Eccentric Disks: Possible Outward Migration
The Astrophysical JournalRadial drift of solid particles in the protoplanetary disk is often invoked as a threat to planet formation, as it removes solid material from the disk before it can be assembled into planets.
Kedron Silsbee
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Pebble formation by ice condensation
EPJ Web of Conferences, 2013 Pebbles with sizes of centimeters to decimeters are needed in order to form kilometer-sized planetesimals, which in turn are needed for planet formation to proceed. The well-studied mechanism of coagulation is efficient only up to millimeter-sized dust
Ros Katrin
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APPLICATION OF GAS DYNAMICAL FRICTION FOR PLANETESIMALS. II. EVOLUTION OF BINARY PLANETESIMALS [PDF]
The Astrophysical Journal, 2016 ABSTRACT One of the first stages of planet formation is the growth of small planetesimals and their accumulation into large planetesimals and planetary embryos. This early stage occurs long before the dispersal of most of the gas from the protoplanetary disk.
Grishin, Evgeni, Perets, Hagai B.
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract Silicate melts play a crucial role in planetary differentiation. The density contrast between silicate melts and the surrounding solid residue exerts a primary control on many magmatic processes. However, direct measurements of the density of silicate melts at high pressure (P) and temperature (T) conditions remain challenging, particularly ...
Man Xu +6 more
wiley +1 more source
Size–Frequency Distribution of Terrestrial Leftover Planetesimals and S-complex Implanted Asteroids
The Astrophysical JournalThe isotopic composition of meteorites linked to S-complex asteroids has been used to suggest that these asteroids originated in the terrestrial planet’s region, i.e., within 1.5 au, and later got implanted into the main asteroid belt (MAB).
Rogerio Deienno +5 more
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