Composition of giant planets: the roles of pebbles and planetesimals [PDF]
Astronomy & Astrophysics, 2023 One of the current challenges of planet formation theory is to explain the enrichment of observed exoplanetary atmospheres. Past studies have focused on scenarios where either pebbles or planetesimals were the heavy element enrichment's drivers, we ...
Claudia Danti +2 more
openalex +3 more sources
Kozai effect on planetesimal accretion in highly inclined binaries [PDF]
EPJ Web of Conferences, 2011 Planet formation in highly inclined binaries is a complex issue. The Kozai mechanism plays an important role in this situation, since it will lead to high eccentricity and high relative impact velocity of planetesimals, thus hinder the planetesimal ...
Gang Zhao, D. N. C. Lin, Jihui Zhou
openalex +2 more sources
Possible Ribose Synthesis in Carbonaceous Planetesimals. [PDF]
Life (Basel), 2022 The origin of life might be sparked by the polymerization of the first RNA molecules in Darwinian ponds during wet-dry cycles. The key life-building block ribose was found in carbonaceous chondrites.
Paschek K +7 more
europepmc +2 more sources
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
openalex +2 more sources
Dust Evolution and the Formation of Planetesimals [PDF]
, 2016 The solid content of circumstellar disks is inherited from the interstellar medium: dust particles of at most a micrometer in size. Protoplanetary disks are the environment where these dust grains need to grow at least 13 orders of magnitude in size. Our
T. Birnstiel, Min Fang, Anders Johansen
openalex +3 more sources
Low strength and a shared size distribution connect the hot and cold Kuiper belt populations. [PDF]
Nat CommunUnderstanding how the observed size distribution of Kuiper Belt objects emerged from the primordial planetesimal population remains a major challenge in planetary science.
Benavidez PG +3 more
europepmc +2 more sources
Carbon to oxygen ratios in extrasolar planetesimals [PDF]
, 2016 Observations of small extrasolar planets with a wide range of densities imply a variety of planetary compositions and structures. Currently, the only technique to measure the bulk composition of extrasolar planetary systems is the analysis of planetary ...
David J. Wilson +3 more
openalex +3 more sources
Recurrent planetesimal formation in an outer part of the early solar system. [PDF]
Sci RepThe formation of planets in our solar system encompassed various stages of accretion of planetesimals that formed in the protoplanetary disk within the first few million years at different distances to the sun.
Neumann W, Ma N, Bouvier A, Trieloff M.
europepmc +2 more sources
Chondrule formation by collisions of planetesimals containing volatiles triggered by Jupiter's formation. [PDF]
Sci RepChondrules are spherical or subspherical particles of crystallized or partially crystallized liquid silicates that constitute large-volume fractions of most chondritic meteorites.
Sirono SI, Turrini D.
europepmc +2 more sources
Early Solar System Turbulence Constrained by High Oxidation States in the Oldest Noncarbonaceous Planetesimals [PDF]
The Planetary Science JournalEarly solar system (SS) planetesimals constitute the parent bodies of most meteorites investigated today. Nucleosynthetic isotope anomalies of bulk meteorites have revealed a dichotomy between noncarbonaceous (NC) and carbonaceous (CC) groups ...
Teng Ee Yap +2 more
openalex +2 more sources